bundle.js

/******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
/******/ 	// The require function
/******/ 	function __webpack_require__(moduleId) {
/******/
/******/ 		// Check if module is in cache
/******/ 		if(installedModules[moduleId])
/******/ 			return installedModules[moduleId].exports;
/******/
/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = installedModules[moduleId] = {
/******/ 			exports: {},
/******/ 			id: moduleId,
/******/ 			loaded: false
/******/ 		};
/******/
/******/ 		// Execute the module function
/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ 		// Flag the module as loaded
/******/ 		module.loaded = true;
/******/
/******/ 		// Return the exports of the module
/******/ 		return module.exports;
/******/ 	}
/******/
/******/
/******/ 	// expose the modules object (__webpack_modules__)
/******/ 	__webpack_require__.m = modules;
/******/
/******/ 	// expose the module cache
/******/ 	__webpack_require__.c = installedModules;
/******/
/******/ 	// __webpack_public_path__
/******/ 	__webpack_require__.p = "";
/******/
/******/ 	// Load entry module and return exports
/******/ 	return __webpack_require__(0);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/*!******************!*\
  !*** multi main ***!
  \******************/
/***/ function(module, exports, __webpack_require__) {

	module.exports = __webpack_require__(/*! ./index */1);


/***/ },
/* 1 */
/*!**********************!*\
  !*** ./index.coffee ***!
  \**********************/
/***/ function(module, exports, __webpack_require__) {

	var $, MathSwipeController, Tuple, Two, game;
	
	$ = __webpack_require__(/*! jquery */ 2);
	
	MathSwipeController = __webpack_require__(/*! ./app/controllers/MathSwipeController */ 3);
	
	Tuple = __webpack_require__(/*! ./app/models/Tuple */ 5);
	
	Two = __webpack_require__(/*! two.js */ 27);
	
	game = new MathSwipeController;


/***/ },
/* 2 */
/*!*********************************!*\
  !*** ./~/jquery/dist/jquery.js ***!
  \*********************************/
/***/ function(module, exports, __webpack_require__) {

	var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;/*!
	 * jQuery JavaScript Library v2.1.4
	 * http://jquery.com/
	 *
	 * Includes Sizzle.js
	 * http://sizzlejs.com/
	 *
	 * Copyright 2005, 2014 jQuery Foundation, Inc. and other contributors
	 * Released under the MIT license
	 * http://jquery.org/license
	 *
	 * Date: 2015-04-28T16:01Z
	 */
	
	(function( global, factory ) {
	
		if ( typeof module === "object" && typeof module.exports === "object" ) {
			// For CommonJS and CommonJS-like environments where a proper `window`
			// is present, execute the factory and get jQuery.
			// For environments that do not have a `window` with a `document`
			// (such as Node.js), expose a factory as module.exports.
			// This accentuates the need for the creation of a real `window`.
			// e.g. var jQuery = require("jquery")(window);
			// See ticket #14549 for more info.
			module.exports = global.document ?
				factory( global, true ) :
				function( w ) {
					if ( !w.document ) {
						throw new Error( "jQuery requires a window with a document" );
					}
					return factory( w );
				};
		} else {
			factory( global );
		}
	
	// Pass this if window is not defined yet
	}(typeof window !== "undefined" ? window : this, function( window, noGlobal ) {
	
	// Support: Firefox 18+
	// Can't be in strict mode, several libs including ASP.NET trace
	// the stack via arguments.caller.callee and Firefox dies if
	// you try to trace through "use strict" call chains. (#13335)
	//
	
	var arr = [];
	
	var slice = arr.slice;
	
	var concat = arr.concat;
	
	var push = arr.push;
	
	var indexOf = arr.indexOf;
	
	var class2type = {};
	
	var toString = class2type.toString;
	
	var hasOwn = class2type.hasOwnProperty;
	
	var support = {};
	
	
	
	var
		// Use the correct document accordingly with window argument (sandbox)
		document = window.document,
	
		version = "2.1.4",
	
		// Define a local copy of jQuery
		jQuery = function( selector, context ) {
			// The jQuery object is actually just the init constructor 'enhanced'
			// Need init if jQuery is called (just allow error to be thrown if not included)
			return new jQuery.fn.init( selector, context );
		},
	
		// Support: Android<4.1
		// Make sure we trim BOM and NBSP
		rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,
	
		// Matches dashed string for camelizing
		rmsPrefix = /^-ms-/,
		rdashAlpha = /-([\da-z])/gi,
	
		// Used by jQuery.camelCase as callback to replace()
		fcamelCase = function( all, letter ) {
			return letter.toUpperCase();
		};
	
	jQuery.fn = jQuery.prototype = {
		// The current version of jQuery being used
		jquery: version,
	
		constructor: jQuery,
	
		// Start with an empty selector
		selector: "",
	
		// The default length of a jQuery object is 0
		length: 0,
	
		toArray: function() {
			return slice.call( this );
		},
	
		// Get the Nth element in the matched element set OR
		// Get the whole matched element set as a clean array
		get: function( num ) {
			return num != null ?
	
				// Return just the one element from the set
				( num < 0 ? this[ num + this.length ] : this[ num ] ) :
	
				// Return all the elements in a clean array
				slice.call( this );
		},
	
		// Take an array of elements and push it onto the stack
		// (returning the new matched element set)
		pushStack: function( elems ) {
	
			// Build a new jQuery matched element set
			var ret = jQuery.merge( this.constructor(), elems );
	
			// Add the old object onto the stack (as a reference)
			ret.prevObject = this;
			ret.context = this.context;
	
			// Return the newly-formed element set
			return ret;
		},
	
		// Execute a callback for every element in the matched set.
		// (You can seed the arguments with an array of args, but this is
		// only used internally.)
		each: function( callback, args ) {
			return jQuery.each( this, callback, args );
		},
	
		map: function( callback ) {
			return this.pushStack( jQuery.map(this, function( elem, i ) {
				return callback.call( elem, i, elem );
			}));
		},
	
		slice: function() {
			return this.pushStack( slice.apply( this, arguments ) );
		},
	
		first: function() {
			return this.eq( 0 );
		},
	
		last: function() {
			return this.eq( -1 );
		},
	
		eq: function( i ) {
			var len = this.length,
				j = +i + ( i < 0 ? len : 0 );
			return this.pushStack( j >= 0 && j < len ? [ this[j] ] : [] );
		},
	
		end: function() {
			return this.prevObject || this.constructor(null);
		},
	
		// For internal use only.
		// Behaves like an Array's method, not like a jQuery method.
		push: push,
		sort: arr.sort,
		splice: arr.splice
	};
	
	jQuery.extend = jQuery.fn.extend = function() {
		var options, name, src, copy, copyIsArray, clone,
			target = arguments[0] || {},
			i = 1,
			length = arguments.length,
			deep = false;
	
		// Handle a deep copy situation
		if ( typeof target === "boolean" ) {
			deep = target;
	
			// Skip the boolean and the target
			target = arguments[ i ] || {};
			i++;
		}
	
		// Handle case when target is a string or something (possible in deep copy)
		if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
			target = {};
		}
	
		// Extend jQuery itself if only one argument is passed
		if ( i === length ) {
			target = this;
			i--;
		}
	
		for ( ; i < length; i++ ) {
			// Only deal with non-null/undefined values
			if ( (options = arguments[ i ]) != null ) {
				// Extend the base object
				for ( name in options ) {
					src = target[ name ];
					copy = options[ name ];
	
					// Prevent never-ending loop
					if ( target === copy ) {
						continue;
					}
	
					// Recurse if we're merging plain objects or arrays
					if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {
						if ( copyIsArray ) {
							copyIsArray = false;
							clone = src && jQuery.isArray(src) ? src : [];
	
						} else {
							clone = src && jQuery.isPlainObject(src) ? src : {};
						}
	
						// Never move original objects, clone them
						target[ name ] = jQuery.extend( deep, clone, copy );
	
					// Don't bring in undefined values
					} else if ( copy !== undefined ) {
						target[ name ] = copy;
					}
				}
			}
		}
	
		// Return the modified object
		return target;
	};
	
	jQuery.extend({
		// Unique for each copy of jQuery on the page
		expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),
	
		// Assume jQuery is ready without the ready module
		isReady: true,
	
		error: function( msg ) {
			throw new Error( msg );
		},
	
		noop: function() {},
	
		isFunction: function( obj ) {
			return jQuery.type(obj) === "function";
		},
	
		isArray: Array.isArray,
	
		isWindow: function( obj ) {
			return obj != null && obj === obj.window;
		},
	
		isNumeric: function( obj ) {
			// parseFloat NaNs numeric-cast false positives (null|true|false|"")
			// ...but misinterprets leading-number strings, particularly hex literals ("0x...")
			// subtraction forces infinities to NaN
			// adding 1 corrects loss of precision from parseFloat (#15100)
			return !jQuery.isArray( obj ) && (obj - parseFloat( obj ) + 1) >= 0;
		},
	
		isPlainObject: function( obj ) {
			// Not plain objects:
			// - Any object or value whose internal [[Class]] property is not "[object Object]"
			// - DOM nodes
			// - window
			if ( jQuery.type( obj ) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
				return false;
			}
	
			if ( obj.constructor &&
					!hasOwn.call( obj.constructor.prototype, "isPrototypeOf" ) ) {
				return false;
			}
	
			// If the function hasn't returned already, we're confident that
			// |obj| is a plain object, created by {} or constructed with new Object
			return true;
		},
	
		isEmptyObject: function( obj ) {
			var name;
			for ( name in obj ) {
				return false;
			}
			return true;
		},
	
		type: function( obj ) {
			if ( obj == null ) {
				return obj + "";
			}
			// Support: Android<4.0, iOS<6 (functionish RegExp)
			return typeof obj === "object" || typeof obj === "function" ?
				class2type[ toString.call(obj) ] || "object" :
				typeof obj;
		},
	
		// Evaluates a script in a global context
		globalEval: function( code ) {
			var script,
				indirect = eval;
	
			code = jQuery.trim( code );
	
			if ( code ) {
				// If the code includes a valid, prologue position
				// strict mode pragma, execute code by injecting a
				// script tag into the document.
				if ( code.indexOf("use strict") === 1 ) {
					script = document.createElement("script");
					script.text = code;
					document.head.appendChild( script ).parentNode.removeChild( script );
				} else {
				// Otherwise, avoid the DOM node creation, insertion
				// and removal by using an indirect global eval
					indirect( code );
				}
			}
		},
	
		// Convert dashed to camelCase; used by the css and data modules
		// Support: IE9-11+
		// Microsoft forgot to hump their vendor prefix (#9572)
		camelCase: function( string ) {
			return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
		},
	
		nodeName: function( elem, name ) {
			return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
		},
	
		// args is for internal usage only
		each: function( obj, callback, args ) {
			var value,
				i = 0,
				length = obj.length,
				isArray = isArraylike( obj );
	
			if ( args ) {
				if ( isArray ) {
					for ( ; i < length; i++ ) {
						value = callback.apply( obj[ i ], args );
	
						if ( value === false ) {
							break;
						}
					}
				} else {
					for ( i in obj ) {
						value = callback.apply( obj[ i ], args );
	
						if ( value === false ) {
							break;
						}
					}
				}
	
			// A special, fast, case for the most common use of each
			} else {
				if ( isArray ) {
					for ( ; i < length; i++ ) {
						value = callback.call( obj[ i ], i, obj[ i ] );
	
						if ( value === false ) {
							break;
						}
					}
				} else {
					for ( i in obj ) {
						value = callback.call( obj[ i ], i, obj[ i ] );
	
						if ( value === false ) {
							break;
						}
					}
				}
			}
	
			return obj;
		},
	
		// Support: Android<4.1
		trim: function( text ) {
			return text == null ?
				"" :
				( text + "" ).replace( rtrim, "" );
		},
	
		// results is for internal usage only
		makeArray: function( arr, results ) {
			var ret = results || [];
	
			if ( arr != null ) {
				if ( isArraylike( Object(arr) ) ) {
					jQuery.merge( ret,
						typeof arr === "string" ?
						[ arr ] : arr
					);
				} else {
					push.call( ret, arr );
				}
			}
	
			return ret;
		},
	
		inArray: function( elem, arr, i ) {
			return arr == null ? -1 : indexOf.call( arr, elem, i );
		},
	
		merge: function( first, second ) {
			var len = +second.length,
				j = 0,
				i = first.length;
	
			for ( ; j < len; j++ ) {
				first[ i++ ] = second[ j ];
			}
	
			first.length = i;
	
			return first;
		},
	
		grep: function( elems, callback, invert ) {
			var callbackInverse,
				matches = [],
				i = 0,
				length = elems.length,
				callbackExpect = !invert;
	
			// Go through the array, only saving the items
			// that pass the validator function
			for ( ; i < length; i++ ) {
				callbackInverse = !callback( elems[ i ], i );
				if ( callbackInverse !== callbackExpect ) {
					matches.push( elems[ i ] );
				}
			}
	
			return matches;
		},
	
		// arg is for internal usage only
		map: function( elems, callback, arg ) {
			var value,
				i = 0,
				length = elems.length,
				isArray = isArraylike( elems ),
				ret = [];
	
			// Go through the array, translating each of the items to their new values
			if ( isArray ) {
				for ( ; i < length; i++ ) {
					value = callback( elems[ i ], i, arg );
	
					if ( value != null ) {
						ret.push( value );
					}
				}
	
			// Go through every key on the object,
			} else {
				for ( i in elems ) {
					value = callback( elems[ i ], i, arg );
	
					if ( value != null ) {
						ret.push( value );
					}
				}
			}
	
			// Flatten any nested arrays
			return concat.apply( [], ret );
		},
	
		// A global GUID counter for objects
		guid: 1,
	
		// Bind a function to a context, optionally partially applying any
		// arguments.
		proxy: function( fn, context ) {
			var tmp, args, proxy;
	
			if ( typeof context === "string" ) {
				tmp = fn[ context ];
				context = fn;
				fn = tmp;
			}
	
			// Quick check to determine if target is callable, in the spec
			// this throws a TypeError, but we will just return undefined.
			if ( !jQuery.isFunction( fn ) ) {
				return undefined;
			}
	
			// Simulated bind
			args = slice.call( arguments, 2 );
			proxy = function() {
				return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
			};
	
			// Set the guid of unique handler to the same of original handler, so it can be removed
			proxy.guid = fn.guid = fn.guid || jQuery.guid++;
	
			return proxy;
		},
	
		now: Date.now,
	
		// jQuery.support is not used in Core but other projects attach their
		// properties to it so it needs to exist.
		support: support
	});
	
	// Populate the class2type map
	jQuery.each("Boolean Number String Function Array Date RegExp Object Error".split(" "), function(i, name) {
		class2type[ "[object " + name + "]" ] = name.toLowerCase();
	});
	
	function isArraylike( obj ) {
	
		// Support: iOS 8.2 (not reproducible in simulator)
		// `in` check used to prevent JIT error (gh-2145)
		// hasOwn isn't used here due to false negatives
		// regarding Nodelist length in IE
		var length = "length" in obj && obj.length,
			type = jQuery.type( obj );
	
		if ( type === "function" || jQuery.isWindow( obj ) ) {
			return false;
		}
	
		if ( obj.nodeType === 1 && length ) {
			return true;
		}
	
		return type === "array" || length === 0 ||
			typeof length === "number" && length > 0 && ( length - 1 ) in obj;
	}
	var Sizzle =
	/*!
	 * Sizzle CSS Selector Engine v2.2.0-pre
	 * http://sizzlejs.com/
	 *
	 * Copyright 2008, 2014 jQuery Foundation, Inc. and other contributors
	 * Released under the MIT license
	 * http://jquery.org/license
	 *
	 * Date: 2014-12-16
	 */
	(function( window ) {
	
	var i,
		support,
		Expr,
		getText,
		isXML,
		tokenize,
		compile,
		select,
		outermostContext,
		sortInput,
		hasDuplicate,
	
		// Local document vars
		setDocument,
		document,
		docElem,
		documentIsHTML,
		rbuggyQSA,
		rbuggyMatches,
		matches,
		contains,
	
		// Instance-specific data
		expando = "sizzle" + 1 * new Date(),
		preferredDoc = window.document,
		dirruns = 0,
		done = 0,
		classCache = createCache(),
		tokenCache = createCache(),
		compilerCache = createCache(),
		sortOrder = function( a, b ) {
			if ( a === b ) {
				hasDuplicate = true;
			}
			return 0;
		},
	
		// General-purpose constants
		MAX_NEGATIVE = 1 << 31,
	
		// Instance methods
		hasOwn = ({}).hasOwnProperty,
		arr = [],
		pop = arr.pop,
		push_native = arr.push,
		push = arr.push,
		slice = arr.slice,
		// Use a stripped-down indexOf as it's faster than native
		// http://jsperf.com/thor-indexof-vs-for/5
		indexOf = function( list, elem ) {
			var i = 0,
				len = list.length;
			for ( ; i < len; i++ ) {
				if ( list[i] === elem ) {
					return i;
				}
			}
			return -1;
		},
	
		booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",
	
		// Regular expressions
	
		// Whitespace characters http://www.w3.org/TR/css3-selectors/#whitespace
		whitespace = "[\\x20\\t\\r\\n\\f]",
		// http://www.w3.org/TR/css3-syntax/#characters
		characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",
	
		// Loosely modeled on CSS identifier characters
		// An unquoted value should be a CSS identifier http://www.w3.org/TR/css3-selectors/#attribute-selectors
		// Proper syntax: http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
		identifier = characterEncoding.replace( "w", "w#" ),
	
		// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
		attributes = "\\[" + whitespace + "*(" + characterEncoding + ")(?:" + whitespace +
			// Operator (capture 2)
			"*([*^$|!~]?=)" + whitespace +
			// "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
			"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
			"*\\]",
	
		pseudos = ":(" + characterEncoding + ")(?:\\((" +
			// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
			// 1. quoted (capture 3; capture 4 or capture 5)
			"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
			// 2. simple (capture 6)
			"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
			// 3. anything else (capture 2)
			".*" +
			")\\)|)",
	
		// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
		rwhitespace = new RegExp( whitespace + "+", "g" ),
		rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
	
		rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
		rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),
	
		rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ),
	
		rpseudo = new RegExp( pseudos ),
		ridentifier = new RegExp( "^" + identifier + "$" ),
	
		matchExpr = {
			"ID": new RegExp( "^#(" + characterEncoding + ")" ),
			"CLASS": new RegExp( "^\\.(" + characterEncoding + ")" ),
			"TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ),
			"ATTR": new RegExp( "^" + attributes ),
			"PSEUDO": new RegExp( "^" + pseudos ),
			"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
				"*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
				"*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
			"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
			// For use in libraries implementing .is()
			// We use this for POS matching in `select`
			"needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
				whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
		},
	
		rinputs = /^(?:input|select|textarea|button)$/i,
		rheader = /^h\d$/i,
	
		rnative = /^[^{]+\{\s*\[native \w/,
	
		// Easily-parseable/retrievable ID or TAG or CLASS selectors
		rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
	
		rsibling = /[+~]/,
		rescape = /'|\\/g,
	
		// CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
		runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
		funescape = function( _, escaped, escapedWhitespace ) {
			var high = "0x" + escaped - 0x10000;
			// NaN means non-codepoint
			// Support: Firefox<24
			// Workaround erroneous numeric interpretation of +"0x"
			return high !== high || escapedWhitespace ?
				escaped :
				high < 0 ?
					// BMP codepoint
					String.fromCharCode( high + 0x10000 ) :
					// Supplemental Plane codepoint (surrogate pair)
					String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
		},
	
		// Used for iframes
		// See setDocument()
		// Removing the function wrapper causes a "Permission Denied"
		// error in IE
		unloadHandler = function() {
			setDocument();
		};
	
	// Optimize for push.apply( _, NodeList )
	try {
		push.apply(
			(arr = slice.call( preferredDoc.childNodes )),
			preferredDoc.childNodes
		);
		// Support: Android<4.0
		// Detect silently failing push.apply
		arr[ preferredDoc.childNodes.length ].nodeType;
	} catch ( e ) {
		push = { apply: arr.length ?
	
			// Leverage slice if possible
			function( target, els ) {
				push_native.apply( target, slice.call(els) );
			} :
	
			// Support: IE<9
			// Otherwise append directly
			function( target, els ) {
				var j = target.length,
					i = 0;
				// Can't trust NodeList.length
				while ( (target[j++] = els[i++]) ) {}
				target.length = j - 1;
			}
		};
	}
	
	function Sizzle( selector, context, results, seed ) {
		var match, elem, m, nodeType,
			// QSA vars
			i, groups, old, nid, newContext, newSelector;
	
		if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
			setDocument( context );
		}
	
		context = context || document;
		results = results || [];
		nodeType = context.nodeType;
	
		if ( typeof selector !== "string" || !selector ||
			nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {
	
			return results;
		}
	
		if ( !seed && documentIsHTML ) {
	
			// Try to shortcut find operations when possible (e.g., not under DocumentFragment)
			if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {
				// Speed-up: Sizzle("#ID")
				if ( (m = match[1]) ) {
					if ( nodeType === 9 ) {
						elem = context.getElementById( m );
						// Check parentNode to catch when Blackberry 4.6 returns
						// nodes that are no longer in the document (jQuery #6963)
						if ( elem && elem.parentNode ) {
							// Handle the case where IE, Opera, and Webkit return items
							// by name instead of ID
							if ( elem.id === m ) {
								results.push( elem );
								return results;
							}
						} else {
							return results;
						}
					} else {
						// Context is not a document
						if ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) &&
							contains( context, elem ) && elem.id === m ) {
							results.push( elem );
							return results;
						}
					}
	
				// Speed-up: Sizzle("TAG")
				} else if ( match[2] ) {
					push.apply( results, context.getElementsByTagName( selector ) );
					return results;
	
				// Speed-up: Sizzle(".CLASS")
				} else if ( (m = match[3]) && support.getElementsByClassName ) {
					push.apply( results, context.getElementsByClassName( m ) );
					return results;
				}
			}
	
			// QSA path
			if ( support.qsa && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {
				nid = old = expando;
				newContext = context;
				newSelector = nodeType !== 1 && selector;
	
				// qSA works strangely on Element-rooted queries
				// We can work around this by specifying an extra ID on the root
				// and working up from there (Thanks to Andrew Dupont for the technique)
				// IE 8 doesn't work on object elements
				if ( nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) {
					groups = tokenize( selector );
	
					if ( (old = context.getAttribute("id")) ) {
						nid = old.replace( rescape, "\\$&" );
					} else {
						context.setAttribute( "id", nid );
					}
					nid = "[id='" + nid + "'] ";
	
					i = groups.length;
					while ( i-- ) {
						groups[i] = nid + toSelector( groups[i] );
					}
					newContext = rsibling.test( selector ) && testContext( context.parentNode ) || context;
					newSelector = groups.join(",");
				}
	
				if ( newSelector ) {
					try {
						push.apply( results,
							newContext.querySelectorAll( newSelector )
						);
						return results;
					} catch(qsaError) {
					} finally {
						if ( !old ) {
							context.removeAttribute("id");
						}
					}
				}
			}
		}
	
		// All others
		return select( selector.replace( rtrim, "$1" ), context, results, seed );
	}
	
	/**
	 * Create key-value caches of limited size
	 * @returns {Function(string, Object)} Returns the Object data after storing it on itself with
	 *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
	 *	deleting the oldest entry
	 */
	function createCache() {
		var keys = [];
	
		function cache( key, value ) {
			// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
			if ( keys.push( key + " " ) > Expr.cacheLength ) {
				// Only keep the most recent entries
				delete cache[ keys.shift() ];
			}
			return (cache[ key + " " ] = value);
		}
		return cache;
	}
	
	/**
	 * Mark a function for special use by Sizzle
	 * @param {Function} fn The function to mark
	 */
	function markFunction( fn ) {
		fn[ expando ] = true;
		return fn;
	}
	
	/**
	 * Support testing using an element
	 * @param {Function} fn Passed the created div and expects a boolean result
	 */
	function assert( fn ) {
		var div = document.createElement("div");
	
		try {
			return !!fn( div );
		} catch (e) {
			return false;
		} finally {
			// Remove from its parent by default
			if ( div.parentNode ) {
				div.parentNode.removeChild( div );
			}
			// release memory in IE
			div = null;
		}
	}
	
	/**
	 * Adds the same handler for all of the specified attrs
	 * @param {String} attrs Pipe-separated list of attributes
	 * @param {Function} handler The method that will be applied
	 */
	function addHandle( attrs, handler ) {
		var arr = attrs.split("|"),
			i = attrs.length;
	
		while ( i-- ) {
			Expr.attrHandle[ arr[i] ] = handler;
		}
	}
	
	/**
	 * Checks document order of two siblings
	 * @param {Element} a
	 * @param {Element} b
	 * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
	 */
	function siblingCheck( a, b ) {
		var cur = b && a,
			diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
				( ~b.sourceIndex || MAX_NEGATIVE ) -
				( ~a.sourceIndex || MAX_NEGATIVE );
	
		// Use IE sourceIndex if available on both nodes
		if ( diff ) {
			return diff;
		}
	
		// Check if b follows a
		if ( cur ) {
			while ( (cur = cur.nextSibling) ) {
				if ( cur === b ) {
					return -1;
				}
			}
		}
	
		return a ? 1 : -1;
	}
	
	/**
	 * Returns a function to use in pseudos for input types
	 * @param {String} type
	 */
	function createInputPseudo( type ) {
		return function( elem ) {
			var name = elem.nodeName.toLowerCase();
			return name === "input" && elem.type === type;
		};
	}
	
	/**
	 * Returns a function to use in pseudos for buttons
	 * @param {String} type
	 */
	function createButtonPseudo( type ) {
		return function( elem ) {
			var name = elem.nodeName.toLowerCase();
			return (name === "input" || name === "button") && elem.type === type;
		};
	}
	
	/**
	 * Returns a function to use in pseudos for positionals
	 * @param {Function} fn
	 */
	function createPositionalPseudo( fn ) {
		return markFunction(function( argument ) {
			argument = +argument;
			return markFunction(function( seed, matches ) {
				var j,
					matchIndexes = fn( [], seed.length, argument ),
					i = matchIndexes.length;
	
				// Match elements found at the specified indexes
				while ( i-- ) {
					if ( seed[ (j = matchIndexes[i]) ] ) {
						seed[j] = !(matches[j] = seed[j]);
					}
				}
			});
		});
	}
	
	/**
	 * Checks a node for validity as a Sizzle context
	 * @param {Element|Object=} context
	 * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
	 */
	function testContext( context ) {
		return context && typeof context.getElementsByTagName !== "undefined" && context;
	}
	
	// Expose support vars for convenience
	support = Sizzle.support = {};
	
	/**
	 * Detects XML nodes
	 * @param {Element|Object} elem An element or a document
	 * @returns {Boolean} True iff elem is a non-HTML XML node
	 */
	isXML = Sizzle.isXML = function( elem ) {
		// documentElement is verified for cases where it doesn't yet exist
		// (such as loading iframes in IE - #4833)
		var documentElement = elem && (elem.ownerDocument || elem).documentElement;
		return documentElement ? documentElement.nodeName !== "HTML" : false;
	};
	
	/**
	 * Sets document-related variables once based on the current document
	 * @param {Element|Object} [doc] An element or document object to use to set the document
	 * @returns {Object} Returns the current document
	 */
	setDocument = Sizzle.setDocument = function( node ) {
		var hasCompare, parent,
			doc = node ? node.ownerDocument || node : preferredDoc;
	
		// If no document and documentElement is available, return
		if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
			return document;
		}
	
		// Set our document
		document = doc;
		docElem = doc.documentElement;
		parent = doc.defaultView;
	
		// Support: IE>8
		// If iframe document is assigned to "document" variable and if iframe has been reloaded,
		// IE will throw "permission denied" error when accessing "document" variable, see jQuery #13936
		// IE6-8 do not support the defaultView property so parent will be undefined
		if ( parent && parent !== parent.top ) {
			// IE11 does not have attachEvent, so all must suffer
			if ( parent.addEventListener ) {
				parent.addEventListener( "unload", unloadHandler, false );
			} else if ( parent.attachEvent ) {
				parent.attachEvent( "onunload", unloadHandler );
			}
		}
	
		/* Support tests
		---------------------------------------------------------------------- */
		documentIsHTML = !isXML( doc );
	
		/* Attributes
		---------------------------------------------------------------------- */
	
		// Support: IE<8
		// Verify that getAttribute really returns attributes and not properties
		// (excepting IE8 booleans)
		support.attributes = assert(function( div ) {
			div.className = "i";
			return !div.getAttribute("className");
		});
	
		/* getElement(s)By*
		---------------------------------------------------------------------- */
	
		// Check if getElementsByTagName("*") returns only elements
		support.getElementsByTagName = assert(function( div ) {
			div.appendChild( doc.createComment("") );
			return !div.getElementsByTagName("*").length;
		});
	
		// Support: IE<9
		support.getElementsByClassName = rnative.test( doc.getElementsByClassName );
	
		// Support: IE<10
		// Check if getElementById returns elements by name
		// The broken getElementById methods don't pick up programatically-set names,
		// so use a roundabout getElementsByName test
		support.getById = assert(function( div ) {
			docElem.appendChild( div ).id = expando;
			return !doc.getElementsByName || !doc.getElementsByName( expando ).length;
		});
	
		// ID find and filter
		if ( support.getById ) {
			Expr.find["ID"] = function( id, context ) {
				if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
					var m = context.getElementById( id );
					// Check parentNode to catch when Blackberry 4.6 returns
					// nodes that are no longer in the document #6963
					return m && m.parentNode ? [ m ] : [];
				}
			};
			Expr.filter["ID"] = function( id ) {
				var attrId = id.replace( runescape, funescape );
				return function( elem ) {
					return elem.getAttribute("id") === attrId;
				};
			};
		} else {
			// Support: IE6/7
			// getElementById is not reliable as a find shortcut
			delete Expr.find["ID"];
	
			Expr.filter["ID"] =  function( id ) {
				var attrId = id.replace( runescape, funescape );
				return function( elem ) {
					var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
					return node && node.value === attrId;
				};
			};
		}
	
		// Tag
		Expr.find["TAG"] = support.getElementsByTagName ?
			function( tag, context ) {
				if ( typeof context.getElementsByTagName !== "undefined" ) {
					return context.getElementsByTagName( tag );
	
				// DocumentFragment nodes don't have gEBTN
				} else if ( support.qsa ) {
					return context.querySelectorAll( tag );
				}
			} :
	
			function( tag, context ) {
				var elem,
					tmp = [],
					i = 0,
					// By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
					results = context.getElementsByTagName( tag );
	
				// Filter out possible comments
				if ( tag === "*" ) {
					while ( (elem = results[i++]) ) {
						if ( elem.nodeType === 1 ) {
							tmp.push( elem );
						}
					}
	
					return tmp;
				}
				return results;
			};
	
		// Class
		Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
			if ( documentIsHTML ) {
				return context.getElementsByClassName( className );
			}
		};
	
		/* QSA/matchesSelector
		---------------------------------------------------------------------- */
	
		// QSA and matchesSelector support
	
		// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
		rbuggyMatches = [];
	
		// qSa(:focus) reports false when true (Chrome 21)
		// We allow this because of a bug in IE8/9 that throws an error
		// whenever `document.activeElement` is accessed on an iframe
		// So, we allow :focus to pass through QSA all the time to avoid the IE error
		// See http://bugs.jquery.com/ticket/13378
		rbuggyQSA = [];
	
		if ( (support.qsa = rnative.test( doc.querySelectorAll )) ) {
			// Build QSA regex
			// Regex strategy adopted from Diego Perini
			assert(function( div ) {
				// Select is set to empty string on purpose
				// This is to test IE's treatment of not explicitly
				// setting a boolean content attribute,
				// since its presence should be enough
				// http://bugs.jquery.com/ticket/12359
				docElem.appendChild( div ).innerHTML = "<a id='" + expando + "'></a>" +
					"<select id='" + expando + "-\f]' msallowcapture=''>" +
					"<option selected=''></option></select>";
	
				// Support: IE8, Opera 11-12.16
				// Nothing should be selected when empty strings follow ^= or $= or *=
				// The test attribute must be unknown in Opera but "safe" for WinRT
				// http://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
				if ( div.querySelectorAll("[msallowcapture^='']").length ) {
					rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
				}
	
				// Support: IE8
				// Boolean attributes and "value" are not treated correctly
				if ( !div.querySelectorAll("[selected]").length ) {
					rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
				}
	
				// Support: Chrome<29, Android<4.2+, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.7+
				if ( !div.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
					rbuggyQSA.push("~=");
				}
	
				// Webkit/Opera - :checked should return selected option elements
				// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
				// IE8 throws error here and will not see later tests
				if ( !div.querySelectorAll(":checked").length ) {
					rbuggyQSA.push(":checked");
				}
	
				// Support: Safari 8+, iOS 8+
				// https://bugs.webkit.org/show_bug.cgi?id=136851
				// In-page `selector#id sibing-combinator selector` fails
				if ( !div.querySelectorAll( "a#" + expando + "+*" ).length ) {
					rbuggyQSA.push(".#.+[+~]");
				}
			});
	
			assert(function( div ) {
				// Support: Windows 8 Native Apps
				// The type and name attributes are restricted during .innerHTML assignment
				var input = doc.createElement("input");
				input.setAttribute( "type", "hidden" );
				div.appendChild( input ).setAttribute( "name", "D" );
	
				// Support: IE8
				// Enforce case-sensitivity of name attribute
				if ( div.querySelectorAll("[name=d]").length ) {
					rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
				}
	
				// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
				// IE8 throws error here and will not see later tests
				if ( !div.querySelectorAll(":enabled").length ) {
					rbuggyQSA.push( ":enabled", ":disabled" );
				}
	
				// Opera 10-11 does not throw on post-comma invalid pseudos
				div.querySelectorAll("*,:x");
				rbuggyQSA.push(",.*:");
			});
		}
	
		if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
			docElem.webkitMatchesSelector ||
			docElem.mozMatchesSelector ||
			docElem.oMatchesSelector ||
			docElem.msMatchesSelector) )) ) {
	
			assert(function( div ) {
				// Check to see if it's possible to do matchesSelector
				// on a disconnected node (IE 9)
				support.disconnectedMatch = matches.call( div, "div" );
	
				// This should fail with an exception
				// Gecko does not error, returns false instead
				matches.call( div, "[s!='']:x" );
				rbuggyMatches.push( "!=", pseudos );
			});
		}
	
		rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
		rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );
	
		/* Contains
		---------------------------------------------------------------------- */
		hasCompare = rnative.test( docElem.compareDocumentPosition );
	
		// Element contains another
		// Purposefully does not implement inclusive descendent
		// As in, an element does not contain itself
		contains = hasCompare || rnative.test( docElem.contains ) ?
			function( a, b ) {
				var adown = a.nodeType === 9 ? a.documentElement : a,
					bup = b && b.parentNode;
				return a === bup || !!( bup && bup.nodeType === 1 && (
					adown.contains ?
						adown.contains( bup ) :
						a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
				));
			} :
			function( a, b ) {
				if ( b ) {
					while ( (b = b.parentNode) ) {
						if ( b === a ) {
							return true;
						}
					}
				}
				return false;
			};
	
		/* Sorting
		---------------------------------------------------------------------- */
	
		// Document order sorting
		sortOrder = hasCompare ?
		function( a, b ) {
	
			// Flag for duplicate removal
			if ( a === b ) {
				hasDuplicate = true;
				return 0;
			}
	
			// Sort on method existence if only one input has compareDocumentPosition
			var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
			if ( compare ) {
				return compare;
			}
	
			// Calculate position if both inputs belong to the same document
			compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?
				a.compareDocumentPosition( b ) :
	
				// Otherwise we know they are disconnected
				1;
	
			// Disconnected nodes
			if ( compare & 1 ||
				(!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {
	
				// Choose the first element that is related to our preferred document
				if ( a === doc || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
					return -1;
				}
				if ( b === doc || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {
					return 1;
				}
	
				// Maintain original order
				return sortInput ?
					( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
					0;
			}
	
			return compare & 4 ? -1 : 1;
		} :
		function( a, b ) {
			// Exit early if the nodes are identical
			if ( a === b ) {
				hasDuplicate = true;
				return 0;
			}
	
			var cur,
				i = 0,
				aup = a.parentNode,
				bup = b.parentNode,
				ap = [ a ],
				bp = [ b ];
	
			// Parentless nodes are either documents or disconnected
			if ( !aup || !bup ) {
				return a === doc ? -1 :
					b === doc ? 1 :
					aup ? -1 :
					bup ? 1 :
					sortInput ?
					( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
					0;
	
			// If the nodes are siblings, we can do a quick check
			} else if ( aup === bup ) {
				return siblingCheck( a, b );
			}
	
			// Otherwise we need full lists of their ancestors for comparison
			cur = a;
			while ( (cur = cur.parentNode) ) {
				ap.unshift( cur );
			}
			cur = b;
			while ( (cur = cur.parentNode) ) {
				bp.unshift( cur );
			}
	
			// Walk down the tree looking for a discrepancy
			while ( ap[i] === bp[i] ) {
				i++;
			}
	
			return i ?
				// Do a sibling check if the nodes have a common ancestor
				siblingCheck( ap[i], bp[i] ) :
	
				// Otherwise nodes in our document sort first
				ap[i] === preferredDoc ? -1 :
				bp[i] === preferredDoc ? 1 :
				0;
		};
	
		return doc;
	};
	
	Sizzle.matches = function( expr, elements ) {
		return Sizzle( expr, null, null, elements );
	};
	
	Sizzle.matchesSelector = function( elem, expr ) {
		// Set document vars if needed
		if ( ( elem.ownerDocument || elem ) !== document ) {
			setDocument( elem );
		}
	
		// Make sure that attribute selectors are quoted
		expr = expr.replace( rattributeQuotes, "='$1']" );
	
		if ( support.matchesSelector && documentIsHTML &&
			( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
			( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {
	
			try {
				var ret = matches.call( elem, expr );
	
				// IE 9's matchesSelector returns false on disconnected nodes
				if ( ret || support.disconnectedMatch ||
						// As well, disconnected nodes are said to be in a document
						// fragment in IE 9
						elem.document && elem.document.nodeType !== 11 ) {
					return ret;
				}
			} catch (e) {}
		}
	
		return Sizzle( expr, document, null, [ elem ] ).length > 0;
	};
	
	Sizzle.contains = function( context, elem ) {
		// Set document vars if needed
		if ( ( context.ownerDocument || context ) !== document ) {
			setDocument( context );
		}
		return contains( context, elem );
	};
	
	Sizzle.attr = function( elem, name ) {
		// Set document vars if needed
		if ( ( elem.ownerDocument || elem ) !== document ) {
			setDocument( elem );
		}
	
		var fn = Expr.attrHandle[ name.toLowerCase() ],
			// Don't get fooled by Object.prototype properties (jQuery #13807)
			val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
				fn( elem, name, !documentIsHTML ) :
				undefined;
	
		return val !== undefined ?
			val :
			support.attributes || !documentIsHTML ?
				elem.getAttribute( name ) :
				(val = elem.getAttributeNode(name)) && val.specified ?
					val.value :
					null;
	};
	
	Sizzle.error = function( msg ) {
		throw new Error( "Syntax error, unrecognized expression: " + msg );
	};
	
	/**
	 * Document sorting and removing duplicates
	 * @param {ArrayLike} results
	 */
	Sizzle.uniqueSort = function( results ) {
		var elem,
			duplicates = [],
			j = 0,
			i = 0;
	
		// Unless we *know* we can detect duplicates, assume their presence
		hasDuplicate = !support.detectDuplicates;
		sortInput = !support.sortStable && results.slice( 0 );
		results.sort( sortOrder );
	
		if ( hasDuplicate ) {
			while ( (elem = results[i++]) ) {
				if ( elem === results[ i ] ) {
					j = duplicates.push( i );
				}
			}
			while ( j-- ) {
				results.splice( duplicates[ j ], 1 );
			}
		}
	
		// Clear input after sorting to release objects
		// See https://github.com/jquery/sizzle/pull/225
		sortInput = null;
	
		return results;
	};
	
	/**
	 * Utility function for retrieving the text value of an array of DOM nodes
	 * @param {Array|Element} elem
	 */
	getText = Sizzle.getText = function( elem ) {
		var node,
			ret = "",
			i = 0,
			nodeType = elem.nodeType;
	
		if ( !nodeType ) {
			// If no nodeType, this is expected to be an array
			while ( (node = elem[i++]) ) {
				// Do not traverse comment nodes
				ret += getText( node );
			}
		} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
			// Use textContent for elements
			// innerText usage removed for consistency of new lines (jQuery #11153)
			if ( typeof elem.textContent === "string" ) {
				return elem.textContent;
			} else {
				// Traverse its children
				for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
					ret += getText( elem );
				}
			}
		} else if ( nodeType === 3 || nodeType === 4 ) {
			return elem.nodeValue;
		}
		// Do not include comment or processing instruction nodes
	
		return ret;
	};
	
	Expr = Sizzle.selectors = {
	
		// Can be adjusted by the user
		cacheLength: 50,
	
		createPseudo: markFunction,
	
		match: matchExpr,
	
		attrHandle: {},
	
		find: {},
	
		relative: {
			">": { dir: "parentNode", first: true },
			" ": { dir: "parentNode" },
			"+": { dir: "previousSibling", first: true },
			"~": { dir: "previousSibling" }
		},
	
		preFilter: {
			"ATTR": function( match ) {
				match[1] = match[1].replace( runescape, funescape );
	
				// Move the given value to match[3] whether quoted or unquoted
				match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape );
	
				if ( match[2] === "~=" ) {
					match[3] = " " + match[3] + " ";
				}
	
				return match.slice( 0, 4 );
			},
	
			"CHILD": function( match ) {
				/* matches from matchExpr["CHILD"]
					1 type (only|nth|...)
					2 what (child|of-type)
					3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
					4 xn-component of xn+y argument ([+-]?\d*n|)
					5 sign of xn-component
					6 x of xn-component
					7 sign of y-component
					8 y of y-component
				*/
				match[1] = match[1].toLowerCase();
	
				if ( match[1].slice( 0, 3 ) === "nth" ) {
					// nth-* requires argument
					if ( !match[3] ) {
						Sizzle.error( match[0] );
					}
	
					// numeric x and y parameters for Expr.filter.CHILD
					// remember that false/true cast respectively to 0/1
					match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
					match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
	
				// other types prohibit arguments
				} else if ( match[3] ) {
					Sizzle.error( match[0] );
				}
	
				return match;
			},
	
			"PSEUDO": function( match ) {
				var excess,
					unquoted = !match[6] && match[2];
	
				if ( matchExpr["CHILD"].test( match[0] ) ) {
					return null;
				}
	
				// Accept quoted arguments as-is
				if ( match[3] ) {
					match[2] = match[4] || match[5] || "";
	
				// Strip excess characters from unquoted arguments
				} else if ( unquoted && rpseudo.test( unquoted ) &&
					// Get excess from tokenize (recursively)
					(excess = tokenize( unquoted, true )) &&
					// advance to the next closing parenthesis
					(excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
	
					// excess is a negative index
					match[0] = match[0].slice( 0, excess );
					match[2] = unquoted.slice( 0, excess );
				}
	
				// Return only captures needed by the pseudo filter method (type and argument)
				return match.slice( 0, 3 );
			}
		},
	
		filter: {
	
			"TAG": function( nodeNameSelector ) {
				var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
				return nodeNameSelector === "*" ?
					function() { return true; } :
					function( elem ) {
						return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
					};
			},
	
			"CLASS": function( className ) {
				var pattern = classCache[ className + " " ];
	
				return pattern ||
					(pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
					classCache( className, function( elem ) {
						return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" );
					});
			},
	
			"ATTR": function( name, operator, check ) {
				return function( elem ) {
					var result = Sizzle.attr( elem, name );
	
					if ( result == null ) {
						return operator === "!=";
					}
					if ( !operator ) {
						return true;
					}
	
					result += "";
	
					return operator === "=" ? result === check :
						operator === "!=" ? result !== check :
						operator === "^=" ? check && result.indexOf( check ) === 0 :
						operator === "*=" ? check && result.indexOf( check ) > -1 :
						operator === "$=" ? check && result.slice( -check.length ) === check :
						operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
						operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
						false;
				};
			},
	
			"CHILD": function( type, what, argument, first, last ) {
				var simple = type.slice( 0, 3 ) !== "nth",
					forward = type.slice( -4 ) !== "last",
					ofType = what === "of-type";
	
				return first === 1 && last === 0 ?
	
					// Shortcut for :nth-*(n)
					function( elem ) {
						return !!elem.parentNode;
					} :
	
					function( elem, context, xml ) {
						var cache, outerCache, node, diff, nodeIndex, start,
							dir = simple !== forward ? "nextSibling" : "previousSibling",
							parent = elem.parentNode,
							name = ofType && elem.nodeName.toLowerCase(),
							useCache = !xml && !ofType;
	
						if ( parent ) {
	
							// :(first|last|only)-(child|of-type)
							if ( simple ) {
								while ( dir ) {
									node = elem;
									while ( (node = node[ dir ]) ) {
										if ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) {
											return false;
										}
									}
									// Reverse direction for :only-* (if we haven't yet done so)
									start = dir = type === "only" && !start && "nextSibling";
								}
								return true;
							}
	
							start = [ forward ? parent.firstChild : parent.lastChild ];
	
							// non-xml :nth-child(...) stores cache data on `parent`
							if ( forward && useCache ) {
								// Seek `elem` from a previously-cached index
								outerCache = parent[ expando ] || (parent[ expando ] = {});
								cache = outerCache[ type ] || [];
								nodeIndex = cache[0] === dirruns && cache[1];
								diff = cache[0] === dirruns && cache[2];
								node = nodeIndex && parent.childNodes[ nodeIndex ];
	
								while ( (node = ++nodeIndex && node && node[ dir ] ||
	
									// Fallback to seeking `elem` from the start
									(diff = nodeIndex = 0) || start.pop()) ) {
	
									// When found, cache indexes on `parent` and break
									if ( node.nodeType === 1 && ++diff && node === elem ) {
										outerCache[ type ] = [ dirruns, nodeIndex, diff ];
										break;
									}
								}
	
							// Use previously-cached element index if available
							} else if ( useCache && (cache = (elem[ expando ] || (elem[ expando ] = {}))[ type ]) && cache[0] === dirruns ) {
								diff = cache[1];
	
							// xml :nth-child(...) or :nth-last-child(...) or :nth(-last)?-of-type(...)
							} else {
								// Use the same loop as above to seek `elem` from the start
								while ( (node = ++nodeIndex && node && node[ dir ] ||
									(diff = nodeIndex = 0) || start.pop()) ) {
	
									if ( ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) && ++diff ) {
										// Cache the index of each encountered element
										if ( useCache ) {
											(node[ expando ] || (node[ expando ] = {}))[ type ] = [ dirruns, diff ];
										}
	
										if ( node === elem ) {
											break;
										}
									}
								}
							}
	
							// Incorporate the offset, then check against cycle size
							diff -= last;
							return diff === first || ( diff % first === 0 && diff / first >= 0 );
						}
					};
			},
	
			"PSEUDO": function( pseudo, argument ) {
				// pseudo-class names are case-insensitive
				// http://www.w3.org/TR/selectors/#pseudo-classes
				// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
				// Remember that setFilters inherits from pseudos
				var args,
					fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
						Sizzle.error( "unsupported pseudo: " + pseudo );
	
				// The user may use createPseudo to indicate that
				// arguments are needed to create the filter function
				// just as Sizzle does
				if ( fn[ expando ] ) {
					return fn( argument );
				}
	
				// But maintain support for old signatures
				if ( fn.length > 1 ) {
					args = [ pseudo, pseudo, "", argument ];
					return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
						markFunction(function( seed, matches ) {
							var idx,
								matched = fn( seed, argument ),
								i = matched.length;
							while ( i-- ) {
								idx = indexOf( seed, matched[i] );
								seed[ idx ] = !( matches[ idx ] = matched[i] );
							}
						}) :
						function( elem ) {
							return fn( elem, 0, args );
						};
				}
	
				return fn;
			}
		},
	
		pseudos: {
			// Potentially complex pseudos
			"not": markFunction(function( selector ) {
				// Trim the selector passed to compile
				// to avoid treating leading and trailing
				// spaces as combinators
				var input = [],
					results = [],
					matcher = compile( selector.replace( rtrim, "$1" ) );
	
				return matcher[ expando ] ?
					markFunction(function( seed, matches, context, xml ) {
						var elem,
							unmatched = matcher( seed, null, xml, [] ),
							i = seed.length;
	
						// Match elements unmatched by `matcher`
						while ( i-- ) {
							if ( (elem = unmatched[i]) ) {
								seed[i] = !(matches[i] = elem);
							}
						}
					}) :
					function( elem, context, xml ) {
						input[0] = elem;
						matcher( input, null, xml, results );
						// Don't keep the element (issue #299)
						input[0] = null;
						return !results.pop();
					};
			}),
	
			"has": markFunction(function( selector ) {
				return function( elem ) {
					return Sizzle( selector, elem ).length > 0;
				};
			}),
	
			"contains": markFunction(function( text ) {
				text = text.replace( runescape, funescape );
				return function( elem ) {
					return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
				};
			}),
	
			// "Whether an element is represented by a :lang() selector
			// is based solely on the element's language value
			// being equal to the identifier C,
			// or beginning with the identifier C immediately followed by "-".
			// The matching of C against the element's language value is performed case-insensitively.
			// The identifier C does not have to be a valid language name."
			// http://www.w3.org/TR/selectors/#lang-pseudo
			"lang": markFunction( function( lang ) {
				// lang value must be a valid identifier
				if ( !ridentifier.test(lang || "") ) {
					Sizzle.error( "unsupported lang: " + lang );
				}
				lang = lang.replace( runescape, funescape ).toLowerCase();
				return function( elem ) {
					var elemLang;
					do {
						if ( (elemLang = documentIsHTML ?
							elem.lang :
							elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {
	
							elemLang = elemLang.toLowerCase();
							return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
						}
					} while ( (elem = elem.parentNode) && elem.nodeType === 1 );
					return false;
				};
			}),
	
			// Miscellaneous
			"target": function( elem ) {
				var hash = window.location && window.location.hash;
				return hash && hash.slice( 1 ) === elem.id;
			},
	
			"root": function( elem ) {
				return elem === docElem;
			},
	
			"focus": function( elem ) {
				return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
			},
	
			// Boolean properties
			"enabled": function( elem ) {
				return elem.disabled === false;
			},
	
			"disabled": function( elem ) {
				return elem.disabled === true;
			},
	
			"checked": function( elem ) {
				// In CSS3, :checked should return both checked and selected elements
				// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
				var nodeName = elem.nodeName.toLowerCase();
				return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
			},
	
			"selected": function( elem ) {
				// Accessing this property makes selected-by-default
				// options in Safari work properly
				if ( elem.parentNode ) {
					elem.parentNode.selectedIndex;
				}
	
				return elem.selected === true;
			},
	
			// Contents
			"empty": function( elem ) {
				// http://www.w3.org/TR/selectors/#empty-pseudo
				// :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
				//   but not by others (comment: 8; processing instruction: 7; etc.)
				// nodeType < 6 works because attributes (2) do not appear as children
				for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
					if ( elem.nodeType < 6 ) {
						return false;
					}
				}
				return true;
			},
	
			"parent": function( elem ) {
				return !Expr.pseudos["empty"]( elem );
			},
	
			// Element/input types
			"header": function( elem ) {
				return rheader.test( elem.nodeName );
			},
	
			"input": function( elem ) {
				return rinputs.test( elem.nodeName );
			},
	
			"button": function( elem ) {
				var name = elem.nodeName.toLowerCase();
				return name === "input" && elem.type === "button" || name === "button";
			},
	
			"text": function( elem ) {
				var attr;
				return elem.nodeName.toLowerCase() === "input" &&
					elem.type === "text" &&
	
					// Support: IE<8
					// New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
					( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" );
			},
	
			// Position-in-collection
			"first": createPositionalPseudo(function() {
				return [ 0 ];
			}),
	
			"last": createPositionalPseudo(function( matchIndexes, length ) {
				return [ length - 1 ];
			}),
	
			"eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
				return [ argument < 0 ? argument + length : argument ];
			}),
	
			"even": createPositionalPseudo(function( matchIndexes, length ) {
				var i = 0;
				for ( ; i < length; i += 2 ) {
					matchIndexes.push( i );
				}
				return matchIndexes;
			}),
	
			"odd": createPositionalPseudo(function( matchIndexes, length ) {
				var i = 1;
				for ( ; i < length; i += 2 ) {
					matchIndexes.push( i );
				}
				return matchIndexes;
			}),
	
			"lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
				var i = argument < 0 ? argument + length : argument;
				for ( ; --i >= 0; ) {
					matchIndexes.push( i );
				}
				return matchIndexes;
			}),
	
			"gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
				var i = argument < 0 ? argument + length : argument;
				for ( ; ++i < length; ) {
					matchIndexes.push( i );
				}
				return matchIndexes;
			})
		}
	};
	
	Expr.pseudos["nth"] = Expr.pseudos["eq"];
	
	// Add button/input type pseudos
	for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
		Expr.pseudos[ i ] = createInputPseudo( i );
	}
	for ( i in { submit: true, reset: true } ) {
		Expr.pseudos[ i ] = createButtonPseudo( i );
	}
	
	// Easy API for creating new setFilters
	function setFilters() {}
	setFilters.prototype = Expr.filters = Expr.pseudos;
	Expr.setFilters = new setFilters();
	
	tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
		var matched, match, tokens, type,
			soFar, groups, preFilters,
			cached = tokenCache[ selector + " " ];
	
		if ( cached ) {
			return parseOnly ? 0 : cached.slice( 0 );
		}
	
		soFar = selector;
		groups = [];
		preFilters = Expr.preFilter;
	
		while ( soFar ) {
	
			// Comma and first run
			if ( !matched || (match = rcomma.exec( soFar )) ) {
				if ( match ) {
					// Don't consume trailing commas as valid
					soFar = soFar.slice( match[0].length ) || soFar;
				}
				groups.push( (tokens = []) );
			}
	
			matched = false;
	
			// Combinators
			if ( (match = rcombinators.exec( soFar )) ) {
				matched = match.shift();
				tokens.push({
					value: matched,
					// Cast descendant combinators to space
					type: match[0].replace( rtrim, " " )
				});
				soFar = soFar.slice( matched.length );
			}
	
			// Filters
			for ( type in Expr.filter ) {
				if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
					(match = preFilters[ type ]( match ))) ) {
					matched = match.shift();
					tokens.push({
						value: matched,
						type: type,
						matches: match
					});
					soFar = soFar.slice( matched.length );
				}
			}
	
			if ( !matched ) {
				break;
			}
		}
	
		// Return the length of the invalid excess
		// if we're just parsing
		// Otherwise, throw an error or return tokens
		return parseOnly ?
			soFar.length :
			soFar ?
				Sizzle.error( selector ) :
				// Cache the tokens
				tokenCache( selector, groups ).slice( 0 );
	};
	
	function toSelector( tokens ) {
		var i = 0,
			len = tokens.length,
			selector = "";
		for ( ; i < len; i++ ) {
			selector += tokens[i].value;
		}
		return selector;
	}
	
	function addCombinator( matcher, combinator, base ) {
		var dir = combinator.dir,
			checkNonElements = base && dir === "parentNode",
			doneName = done++;
	
		return combinator.first ?
			// Check against closest ancestor/preceding element
			function( elem, context, xml ) {
				while ( (elem = elem[ dir ]) ) {
					if ( elem.nodeType === 1 || checkNonElements ) {
						return matcher( elem, context, xml );
					}
				}
			} :
	
			// Check against all ancestor/preceding elements
			function( elem, context, xml ) {
				var oldCache, outerCache,
					newCache = [ dirruns, doneName ];
	
				// We can't set arbitrary data on XML nodes, so they don't benefit from dir caching
				if ( xml ) {
					while ( (elem = elem[ dir ]) ) {
						if ( elem.nodeType === 1 || checkNonElements ) {
							if ( matcher( elem, context, xml ) ) {
								return true;
							}
						}
					}
				} else {
					while ( (elem = elem[ dir ]) ) {
						if ( elem.nodeType === 1 || checkNonElements ) {
							outerCache = elem[ expando ] || (elem[ expando ] = {});
							if ( (oldCache = outerCache[ dir ]) &&
								oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {
	
								// Assign to newCache so results back-propagate to previous elements
								return (newCache[ 2 ] = oldCache[ 2 ]);
							} else {
								// Reuse newcache so results back-propagate to previous elements
								outerCache[ dir ] = newCache;
	
								// A match means we're done; a fail means we have to keep checking
								if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {
									return true;
								}
							}
						}
					}
				}
			};
	}
	
	function elementMatcher( matchers ) {
		return matchers.length > 1 ?
			function( elem, context, xml ) {
				var i = matchers.length;
				while ( i-- ) {
					if ( !matchers[i]( elem, context, xml ) ) {
						return false;
					}
				}
				return true;
			} :
			matchers[0];
	}
	
	function multipleContexts( selector, contexts, results ) {
		var i = 0,
			len = contexts.length;
		for ( ; i < len; i++ ) {
			Sizzle( selector, contexts[i], results );
		}
		return results;
	}
	
	function condense( unmatched, map, filter, context, xml ) {
		var elem,
			newUnmatched = [],
			i = 0,
			len = unmatched.length,
			mapped = map != null;
	
		for ( ; i < len; i++ ) {
			if ( (elem = unmatched[i]) ) {
				if ( !filter || filter( elem, context, xml ) ) {
					newUnmatched.push( elem );
					if ( mapped ) {
						map.push( i );
					}
				}
			}
		}
	
		return newUnmatched;
	}
	
	function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
		if ( postFilter && !postFilter[ expando ] ) {
			postFilter = setMatcher( postFilter );
		}
		if ( postFinder && !postFinder[ expando ] ) {
			postFinder = setMatcher( postFinder, postSelector );
		}
		return markFunction(function( seed, results, context, xml ) {
			var temp, i, elem,
				preMap = [],
				postMap = [],
				preexisting = results.length,
	
				// Get initial elements from seed or context
				elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
	
				// Prefilter to get matcher input, preserving a map for seed-results synchronization
				matcherIn = preFilter && ( seed || !selector ) ?
					condense( elems, preMap, preFilter, context, xml ) :
					elems,
	
				matcherOut = matcher ?
					// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
					postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
	
						// ...intermediate processing is necessary
						[] :
	
						// ...otherwise use results directly
						results :
					matcherIn;
	
			// Find primary matches
			if ( matcher ) {
				matcher( matcherIn, matcherOut, context, xml );
			}
	
			// Apply postFilter
			if ( postFilter ) {
				temp = condense( matcherOut, postMap );
				postFilter( temp, [], context, xml );
	
				// Un-match failing elements by moving them back to matcherIn
				i = temp.length;
				while ( i-- ) {
					if ( (elem = temp[i]) ) {
						matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
					}
				}
			}
	
			if ( seed ) {
				if ( postFinder || preFilter ) {
					if ( postFinder ) {
						// Get the final matcherOut by condensing this intermediate into postFinder contexts
						temp = [];
						i = matcherOut.length;
						while ( i-- ) {
							if ( (elem = matcherOut[i]) ) {
								// Restore matcherIn since elem is not yet a final match
								temp.push( (matcherIn[i] = elem) );
							}
						}
						postFinder( null, (matcherOut = []), temp, xml );
					}
	
					// Move matched elements from seed to results to keep them synchronized
					i = matcherOut.length;
					while ( i-- ) {
						if ( (elem = matcherOut[i]) &&
							(temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {
	
							seed[temp] = !(results[temp] = elem);
						}
					}
				}
	
			// Add elements to results, through postFinder if defined
			} else {
				matcherOut = condense(
					matcherOut === results ?
						matcherOut.splice( preexisting, matcherOut.length ) :
						matcherOut
				);
				if ( postFinder ) {
					postFinder( null, results, matcherOut, xml );
				} else {
					push.apply( results, matcherOut );
				}
			}
		});
	}
	
	function matcherFromTokens( tokens ) {
		var checkContext, matcher, j,
			len = tokens.length,
			leadingRelative = Expr.relative[ tokens[0].type ],
			implicitRelative = leadingRelative || Expr.relative[" "],
			i = leadingRelative ? 1 : 0,
	
			// The foundational matcher ensures that elements are reachable from top-level context(s)
			matchContext = addCombinator( function( elem ) {
				return elem === checkContext;
			}, implicitRelative, true ),
			matchAnyContext = addCombinator( function( elem ) {
				return indexOf( checkContext, elem ) > -1;
			}, implicitRelative, true ),
			matchers = [ function( elem, context, xml ) {
				var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
					(checkContext = context).nodeType ?
						matchContext( elem, context, xml ) :
						matchAnyContext( elem, context, xml ) );
				// Avoid hanging onto element (issue #299)
				checkContext = null;
				return ret;
			} ];
	
		for ( ; i < len; i++ ) {
			if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
				matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
			} else {
				matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
	
				// Return special upon seeing a positional matcher
				if ( matcher[ expando ] ) {
					// Find the next relative operator (if any) for proper handling
					j = ++i;
					for ( ; j < len; j++ ) {
						if ( Expr.relative[ tokens[j].type ] ) {
							break;
						}
					}
					return setMatcher(
						i > 1 && elementMatcher( matchers ),
						i > 1 && toSelector(
							// If the preceding token was a descendant combinator, insert an implicit any-element `*`
							tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
						).replace( rtrim, "$1" ),
						matcher,
						i < j && matcherFromTokens( tokens.slice( i, j ) ),
						j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
						j < len && toSelector( tokens )
					);
				}
				matchers.push( matcher );
			}
		}
	
		return elementMatcher( matchers );
	}
	
	function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
		var bySet = setMatchers.length > 0,
			byElement = elementMatchers.length > 0,
			superMatcher = function( seed, context, xml, results, outermost ) {
				var elem, j, matcher,
					matchedCount = 0,
					i = "0",
					unmatched = seed && [],
					setMatched = [],
					contextBackup = outermostContext,
					// We must always have either seed elements or outermost context
					elems = seed || byElement && Expr.find["TAG"]( "*", outermost ),
					// Use integer dirruns iff this is the outermost matcher
					dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
					len = elems.length;
	
				if ( outermost ) {
					outermostContext = context !== document && context;
				}
	
				// Add elements passing elementMatchers directly to results
				// Keep `i` a string if there are no elements so `matchedCount` will be "00" below
				// Support: IE<9, Safari
				// Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
				for ( ; i !== len && (elem = elems[i]) != null; i++ ) {
					if ( byElement && elem ) {
						j = 0;
						while ( (matcher = elementMatchers[j++]) ) {
							if ( matcher( elem, context, xml ) ) {
								results.push( elem );
								break;
							}
						}
						if ( outermost ) {
							dirruns = dirrunsUnique;
						}
					}
	
					// Track unmatched elements for set filters
					if ( bySet ) {
						// They will have gone through all possible matchers
						if ( (elem = !matcher && elem) ) {
							matchedCount--;
						}
	
						// Lengthen the array for every element, matched or not
						if ( seed ) {
							unmatched.push( elem );
						}
					}
				}
	
				// Apply set filters to unmatched elements
				matchedCount += i;
				if ( bySet && i !== matchedCount ) {
					j = 0;
					while ( (matcher = setMatchers[j++]) ) {
						matcher( unmatched, setMatched, context, xml );
					}
	
					if ( seed ) {
						// Reintegrate element matches to eliminate the need for sorting
						if ( matchedCount > 0 ) {
							while ( i-- ) {
								if ( !(unmatched[i] || setMatched[i]) ) {
									setMatched[i] = pop.call( results );
								}
							}
						}
	
						// Discard index placeholder values to get only actual matches
						setMatched = condense( setMatched );
					}
	
					// Add matches to results
					push.apply( results, setMatched );
	
					// Seedless set matches succeeding multiple successful matchers stipulate sorting
					if ( outermost && !seed && setMatched.length > 0 &&
						( matchedCount + setMatchers.length ) > 1 ) {
	
						Sizzle.uniqueSort( results );
					}
				}
	
				// Override manipulation of globals by nested matchers
				if ( outermost ) {
					dirruns = dirrunsUnique;
					outermostContext = contextBackup;
				}
	
				return unmatched;
			};
	
		return bySet ?
			markFunction( superMatcher ) :
			superMatcher;
	}
	
	compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
		var i,
			setMatchers = [],
			elementMatchers = [],
			cached = compilerCache[ selector + " " ];
	
		if ( !cached ) {
			// Generate a function of recursive functions that can be used to check each element
			if ( !match ) {
				match = tokenize( selector );
			}
			i = match.length;
			while ( i-- ) {
				cached = matcherFromTokens( match[i] );
				if ( cached[ expando ] ) {
					setMatchers.push( cached );
				} else {
					elementMatchers.push( cached );
				}
			}
	
			// Cache the compiled function
			cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
	
			// Save selector and tokenization
			cached.selector = selector;
		}
		return cached;
	};
	
	/**
	 * A low-level selection function that works with Sizzle's compiled
	 *  selector functions
	 * @param {String|Function} selector A selector or a pre-compiled
	 *  selector function built with Sizzle.compile
	 * @param {Element} context
	 * @param {Array} [results]
	 * @param {Array} [seed] A set of elements to match against
	 */
	select = Sizzle.select = function( selector, context, results, seed ) {
		var i, tokens, token, type, find,
			compiled = typeof selector === "function" && selector,
			match = !seed && tokenize( (selector = compiled.selector || selector) );
	
		results = results || [];
	
		// Try to minimize operations if there is no seed and only one group
		if ( match.length === 1 ) {
	
			// Take a shortcut and set the context if the root selector is an ID
			tokens = match[0] = match[0].slice( 0 );
			if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
					support.getById && context.nodeType === 9 && documentIsHTML &&
					Expr.relative[ tokens[1].type ] ) {
	
				context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
				if ( !context ) {
					return results;
	
				// Precompiled matchers will still verify ancestry, so step up a level
				} else if ( compiled ) {
					context = context.parentNode;
				}
	
				selector = selector.slice( tokens.shift().value.length );
			}
	
			// Fetch a seed set for right-to-left matching
			i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
			while ( i-- ) {
				token = tokens[i];
	
				// Abort if we hit a combinator
				if ( Expr.relative[ (type = token.type) ] ) {
					break;
				}
				if ( (find = Expr.find[ type ]) ) {
					// Search, expanding context for leading sibling combinators
					if ( (seed = find(
						token.matches[0].replace( runescape, funescape ),
						rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context
					)) ) {
	
						// If seed is empty or no tokens remain, we can return early
						tokens.splice( i, 1 );
						selector = seed.length && toSelector( tokens );
						if ( !selector ) {
							push.apply( results, seed );
							return results;
						}
	
						break;
					}
				}
			}
		}
	
		// Compile and execute a filtering function if one is not provided
		// Provide `match` to avoid retokenization if we modified the selector above
		( compiled || compile( selector, match ) )(
			seed,
			context,
			!documentIsHTML,
			results,
			rsibling.test( selector ) && testContext( context.parentNode ) || context
		);
		return results;
	};
	
	// One-time assignments
	
	// Sort stability
	support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;
	
	// Support: Chrome 14-35+
	// Always assume duplicates if they aren't passed to the comparison function
	support.detectDuplicates = !!hasDuplicate;
	
	// Initialize against the default document
	setDocument();
	
	// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
	// Detached nodes confoundingly follow *each other*
	support.sortDetached = assert(function( div1 ) {
		// Should return 1, but returns 4 (following)
		return div1.compareDocumentPosition( document.createElement("div") ) & 1;
	});
	
	// Support: IE<8
	// Prevent attribute/property "interpolation"
	// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
	if ( !assert(function( div ) {
		div.innerHTML = "<a href='#'></a>";
		return div.firstChild.getAttribute("href") === "#" ;
	}) ) {
		addHandle( "type|href|height|width", function( elem, name, isXML ) {
			if ( !isXML ) {
				return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
			}
		});
	}
	
	// Support: IE<9
	// Use defaultValue in place of getAttribute("value")
	if ( !support.attributes || !assert(function( div ) {
		div.innerHTML = "<input/>";
		div.firstChild.setAttribute( "value", "" );
		return div.firstChild.getAttribute( "value" ) === "";
	}) ) {
		addHandle( "value", function( elem, name, isXML ) {
			if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
				return elem.defaultValue;
			}
		});
	}
	
	// Support: IE<9
	// Use getAttributeNode to fetch booleans when getAttribute lies
	if ( !assert(function( div ) {
		return div.getAttribute("disabled") == null;
	}) ) {
		addHandle( booleans, function( elem, name, isXML ) {
			var val;
			if ( !isXML ) {
				return elem[ name ] === true ? name.toLowerCase() :
						(val = elem.getAttributeNode( name )) && val.specified ?
						val.value :
					null;
			}
		});
	}
	
	return Sizzle;
	
	})( window );
	
	
	
	jQuery.find = Sizzle;
	jQuery.expr = Sizzle.selectors;
	jQuery.expr[":"] = jQuery.expr.pseudos;
	jQuery.unique = Sizzle.uniqueSort;
	jQuery.text = Sizzle.getText;
	jQuery.isXMLDoc = Sizzle.isXML;
	jQuery.contains = Sizzle.contains;
	
	
	
	var rneedsContext = jQuery.expr.match.needsContext;
	
	var rsingleTag = (/^<(\w+)\s*\/?>(?:<\/\1>|)$/);
	
	
	
	var risSimple = /^.[^:#\[\.,]*$/;
	
	// Implement the identical functionality for filter and not
	function winnow( elements, qualifier, not ) {
		if ( jQuery.isFunction( qualifier ) ) {
			return jQuery.grep( elements, function( elem, i ) {
				/* jshint -W018 */
				return !!qualifier.call( elem, i, elem ) !== not;
			});
	
		}
	
		if ( qualifier.nodeType ) {
			return jQuery.grep( elements, function( elem ) {
				return ( elem === qualifier ) !== not;
			});
	
		}
	
		if ( typeof qualifier === "string" ) {
			if ( risSimple.test( qualifier ) ) {
				return jQuery.filter( qualifier, elements, not );
			}
	
			qualifier = jQuery.filter( qualifier, elements );
		}
	
		return jQuery.grep( elements, function( elem ) {
			return ( indexOf.call( qualifier, elem ) >= 0 ) !== not;
		});
	}
	
	jQuery.filter = function( expr, elems, not ) {
		var elem = elems[ 0 ];
	
		if ( not ) {
			expr = ":not(" + expr + ")";
		}
	
		return elems.length === 1 && elem.nodeType === 1 ?
			jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [] :
			jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
				return elem.nodeType === 1;
			}));
	};
	
	jQuery.fn.extend({
		find: function( selector ) {
			var i,
				len = this.length,
				ret = [],
				self = this;
	
			if ( typeof selector !== "string" ) {
				return this.pushStack( jQuery( selector ).filter(function() {
					for ( i = 0; i < len; i++ ) {
						if ( jQuery.contains( self[ i ], this ) ) {
							return true;
						}
					}
				}) );
			}
	
			for ( i = 0; i < len; i++ ) {
				jQuery.find( selector, self[ i ], ret );
			}
	
			// Needed because $( selector, context ) becomes $( context ).find( selector )
			ret = this.pushStack( len > 1 ? jQuery.unique( ret ) : ret );
			ret.selector = this.selector ? this.selector + " " + selector : selector;
			return ret;
		},
		filter: function( selector ) {
			return this.pushStack( winnow(this, selector || [], false) );
		},
		not: function( selector ) {
			return this.pushStack( winnow(this, selector || [], true) );
		},
		is: function( selector ) {
			return !!winnow(
				this,
	
				// If this is a positional/relative selector, check membership in the returned set
				// so $("p:first").is("p:last") won't return true for a doc with two "p".
				typeof selector === "string" && rneedsContext.test( selector ) ?
					jQuery( selector ) :
					selector || [],
				false
			).length;
		}
	});
	
	
	// Initialize a jQuery object
	
	
	// A central reference to the root jQuery(document)
	var rootjQuery,
	
		// A simple way to check for HTML strings
		// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
		// Strict HTML recognition (#11290: must start with <)
		rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/,
	
		init = jQuery.fn.init = function( selector, context ) {
			var match, elem;
	
			// HANDLE: $(""), $(null), $(undefined), $(false)
			if ( !selector ) {
				return this;
			}
	
			// Handle HTML strings
			if ( typeof selector === "string" ) {
				if ( selector[0] === "<" && selector[ selector.length - 1 ] === ">" && selector.length >= 3 ) {
					// Assume that strings that start and end with <> are HTML and skip the regex check
					match = [ null, selector, null ];
	
				} else {
					match = rquickExpr.exec( selector );
				}
	
				// Match html or make sure no context is specified for #id
				if ( match && (match[1] || !context) ) {
	
					// HANDLE: $(html) -> $(array)
					if ( match[1] ) {
						context = context instanceof jQuery ? context[0] : context;
	
						// Option to run scripts is true for back-compat
						// Intentionally let the error be thrown if parseHTML is not present
						jQuery.merge( this, jQuery.parseHTML(
							match[1],
							context && context.nodeType ? context.ownerDocument || context : document,
							true
						) );
	
						// HANDLE: $(html, props)
						if ( rsingleTag.test( match[1] ) && jQuery.isPlainObject( context ) ) {
							for ( match in context ) {
								// Properties of context are called as methods if possible
								if ( jQuery.isFunction( this[ match ] ) ) {
									this[ match ]( context[ match ] );
	
								// ...and otherwise set as attributes
								} else {
									this.attr( match, context[ match ] );
								}
							}
						}
	
						return this;
	
					// HANDLE: $(#id)
					} else {
						elem = document.getElementById( match[2] );
	
						// Support: Blackberry 4.6
						// gEBID returns nodes no longer in the document (#6963)
						if ( elem && elem.parentNode ) {
							// Inject the element directly into the jQuery object
							this.length = 1;
							this[0] = elem;
						}
	
						this.context = document;
						this.selector = selector;
						return this;
					}
	
				// HANDLE: $(expr, $(...))
				} else if ( !context || context.jquery ) {
					return ( context || rootjQuery ).find( selector );
	
				// HANDLE: $(expr, context)
				// (which is just equivalent to: $(context).find(expr)
				} else {
					return this.constructor( context ).find( selector );
				}
	
			// HANDLE: $(DOMElement)
			} else if ( selector.nodeType ) {
				this.context = this[0] = selector;
				this.length = 1;
				return this;
	
			// HANDLE: $(function)
			// Shortcut for document ready
			} else if ( jQuery.isFunction( selector ) ) {
				return typeof rootjQuery.ready !== "undefined" ?
					rootjQuery.ready( selector ) :
					// Execute immediately if ready is not present
					selector( jQuery );
			}
	
			if ( selector.selector !== undefined ) {
				this.selector = selector.selector;
				this.context = selector.context;
			}
	
			return jQuery.makeArray( selector, this );
		};
	
	// Give the init function the jQuery prototype for later instantiation
	init.prototype = jQuery.fn;
	
	// Initialize central reference
	rootjQuery = jQuery( document );
	
	
	var rparentsprev = /^(?:parents|prev(?:Until|All))/,
		// Methods guaranteed to produce a unique set when starting from a unique set
		guaranteedUnique = {
			children: true,
			contents: true,
			next: true,
			prev: true
		};
	
	jQuery.extend({
		dir: function( elem, dir, until ) {
			var matched = [],
				truncate = until !== undefined;
	
			while ( (elem = elem[ dir ]) && elem.nodeType !== 9 ) {
				if ( elem.nodeType === 1 ) {
					if ( truncate && jQuery( elem ).is( until ) ) {
						break;
					}
					matched.push( elem );
				}
			}
			return matched;
		},
	
		sibling: function( n, elem ) {
			var matched = [];
	
			for ( ; n; n = n.nextSibling ) {
				if ( n.nodeType === 1 && n !== elem ) {
					matched.push( n );
				}
			}
	
			return matched;
		}
	});
	
	jQuery.fn.extend({
		has: function( target ) {
			var targets = jQuery( target, this ),
				l = targets.length;
	
			return this.filter(function() {
				var i = 0;
				for ( ; i < l; i++ ) {
					if ( jQuery.contains( this, targets[i] ) ) {
						return true;
					}
				}
			});
		},
	
		closest: function( selectors, context ) {
			var cur,
				i = 0,
				l = this.length,
				matched = [],
				pos = rneedsContext.test( selectors ) || typeof selectors !== "string" ?
					jQuery( selectors, context || this.context ) :
					0;
	
			for ( ; i < l; i++ ) {
				for ( cur = this[i]; cur && cur !== context; cur = cur.parentNode ) {
					// Always skip document fragments
					if ( cur.nodeType < 11 && (pos ?
						pos.index(cur) > -1 :
	
						// Don't pass non-elements to Sizzle
						cur.nodeType === 1 &&
							jQuery.find.matchesSelector(cur, selectors)) ) {
	
						matched.push( cur );
						break;
					}
				}
			}
	
			return this.pushStack( matched.length > 1 ? jQuery.unique( matched ) : matched );
		},
	
		// Determine the position of an element within the set
		index: function( elem ) {
	
			// No argument, return index in parent
			if ( !elem ) {
				return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
			}
	
			// Index in selector
			if ( typeof elem === "string" ) {
				return indexOf.call( jQuery( elem ), this[ 0 ] );
			}
	
			// Locate the position of the desired element
			return indexOf.call( this,
	
				// If it receives a jQuery object, the first element is used
				elem.jquery ? elem[ 0 ] : elem
			);
		},
	
		add: function( selector, context ) {
			return this.pushStack(
				jQuery.unique(
					jQuery.merge( this.get(), jQuery( selector, context ) )
				)
			);
		},
	
		addBack: function( selector ) {
			return this.add( selector == null ?
				this.prevObject : this.prevObject.filter(selector)
			);
		}
	});
	
	function sibling( cur, dir ) {
		while ( (cur = cur[dir]) && cur.nodeType !== 1 ) {}
		return cur;
	}
	
	jQuery.each({
		parent: function( elem ) {
			var parent = elem.parentNode;
			return parent && parent.nodeType !== 11 ? parent : null;
		},
		parents: function( elem ) {
			return jQuery.dir( elem, "parentNode" );
		},
		parentsUntil: function( elem, i, until ) {
			return jQuery.dir( elem, "parentNode", until );
		},
		next: function( elem ) {
			return sibling( elem, "nextSibling" );
		},
		prev: function( elem ) {
			return sibling( elem, "previousSibling" );
		},
		nextAll: function( elem ) {
			return jQuery.dir( elem, "nextSibling" );
		},
		prevAll: function( elem ) {
			return jQuery.dir( elem, "previousSibling" );
		},
		nextUntil: function( elem, i, until ) {
			return jQuery.dir( elem, "nextSibling", until );
		},
		prevUntil: function( elem, i, until ) {
			return jQuery.dir( elem, "previousSibling", until );
		},
		siblings: function( elem ) {
			return jQuery.sibling( ( elem.parentNode || {} ).firstChild, elem );
		},
		children: function( elem ) {
			return jQuery.sibling( elem.firstChild );
		},
		contents: function( elem ) {
			return elem.contentDocument || jQuery.merge( [], elem.childNodes );
		}
	}, function( name, fn ) {
		jQuery.fn[ name ] = function( until, selector ) {
			var matched = jQuery.map( this, fn, until );
	
			if ( name.slice( -5 ) !== "Until" ) {
				selector = until;
			}
	
			if ( selector && typeof selector === "string" ) {
				matched = jQuery.filter( selector, matched );
			}
	
			if ( this.length > 1 ) {
				// Remove duplicates
				if ( !guaranteedUnique[ name ] ) {
					jQuery.unique( matched );
				}
	
				// Reverse order for parents* and prev-derivatives
				if ( rparentsprev.test( name ) ) {
					matched.reverse();
				}
			}
	
			return this.pushStack( matched );
		};
	});
	var rnotwhite = (/\S+/g);
	
	
	
	// String to Object options format cache
	var optionsCache = {};
	
	// Convert String-formatted options into Object-formatted ones and store in cache
	function createOptions( options ) {
		var object = optionsCache[ options ] = {};
		jQuery.each( options.match( rnotwhite ) || [], function( _, flag ) {
			object[ flag ] = true;
		});
		return object;
	}
	
	/*
	 * Create a callback list using the following parameters:
	 *
	 *	options: an optional list of space-separated options that will change how
	 *			the callback list behaves or a more traditional option object
	 *
	 * By default a callback list will act like an event callback list and can be
	 * "fired" multiple times.
	 *
	 * Possible options:
	 *
	 *	once:			will ensure the callback list can only be fired once (like a Deferred)
	 *
	 *	memory:			will keep track of previous values and will call any callback added
	 *					after the list has been fired right away with the latest "memorized"
	 *					values (like a Deferred)
	 *
	 *	unique:			will ensure a callback can only be added once (no duplicate in the list)
	 *
	 *	stopOnFalse:	interrupt callings when a callback returns false
	 *
	 */
	jQuery.Callbacks = function( options ) {
	
		// Convert options from String-formatted to Object-formatted if needed
		// (we check in cache first)
		options = typeof options === "string" ?
			( optionsCache[ options ] || createOptions( options ) ) :
			jQuery.extend( {}, options );
	
		var // Last fire value (for non-forgettable lists)
			memory,
			// Flag to know if list was already fired
			fired,
			// Flag to know if list is currently firing
			firing,
			// First callback to fire (used internally by add and fireWith)
			firingStart,
			// End of the loop when firing
			firingLength,
			// Index of currently firing callback (modified by remove if needed)
			firingIndex,
			// Actual callback list
			list = [],
			// Stack of fire calls for repeatable lists
			stack = !options.once && [],
			// Fire callbacks
			fire = function( data ) {
				memory = options.memory && data;
				fired = true;
				firingIndex = firingStart || 0;
				firingStart = 0;
				firingLength = list.length;
				firing = true;
				for ( ; list && firingIndex < firingLength; firingIndex++ ) {
					if ( list[ firingIndex ].apply( data[ 0 ], data[ 1 ] ) === false && options.stopOnFalse ) {
						memory = false; // To prevent further calls using add
						break;
					}
				}
				firing = false;
				if ( list ) {
					if ( stack ) {
						if ( stack.length ) {
							fire( stack.shift() );
						}
					} else if ( memory ) {
						list = [];
					} else {
						self.disable();
					}
				}
			},
			// Actual Callbacks object
			self = {
				// Add a callback or a collection of callbacks to the list
				add: function() {
					if ( list ) {
						// First, we save the current length
						var start = list.length;
						(function add( args ) {
							jQuery.each( args, function( _, arg ) {
								var type = jQuery.type( arg );
								if ( type === "function" ) {
									if ( !options.unique || !self.has( arg ) ) {
										list.push( arg );
									}
								} else if ( arg && arg.length && type !== "string" ) {
									// Inspect recursively
									add( arg );
								}
							});
						})( arguments );
						// Do we need to add the callbacks to the
						// current firing batch?
						if ( firing ) {
							firingLength = list.length;
						// With memory, if we're not firing then
						// we should call right away
						} else if ( memory ) {
							firingStart = start;
							fire( memory );
						}
					}
					return this;
				},
				// Remove a callback from the list
				remove: function() {
					if ( list ) {
						jQuery.each( arguments, function( _, arg ) {
							var index;
							while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
								list.splice( index, 1 );
								// Handle firing indexes
								if ( firing ) {
									if ( index <= firingLength ) {
										firingLength--;
									}
									if ( index <= firingIndex ) {
										firingIndex--;
									}
								}
							}
						});
					}
					return this;
				},
				// Check if a given callback is in the list.
				// If no argument is given, return whether or not list has callbacks attached.
				has: function( fn ) {
					return fn ? jQuery.inArray( fn, list ) > -1 : !!( list && list.length );
				},
				// Remove all callbacks from the list
				empty: function() {
					list = [];
					firingLength = 0;
					return this;
				},
				// Have the list do nothing anymore
				disable: function() {
					list = stack = memory = undefined;
					return this;
				},
				// Is it disabled?
				disabled: function() {
					return !list;
				},
				// Lock the list in its current state
				lock: function() {
					stack = undefined;
					if ( !memory ) {
						self.disable();
					}
					return this;
				},
				// Is it locked?
				locked: function() {
					return !stack;
				},
				// Call all callbacks with the given context and arguments
				fireWith: function( context, args ) {
					if ( list && ( !fired || stack ) ) {
						args = args || [];
						args = [ context, args.slice ? args.slice() : args ];
						if ( firing ) {
							stack.push( args );
						} else {
							fire( args );
						}
					}
					return this;
				},
				// Call all the callbacks with the given arguments
				fire: function() {
					self.fireWith( this, arguments );
					return this;
				},
				// To know if the callbacks have already been called at least once
				fired: function() {
					return !!fired;
				}
			};
	
		return self;
	};
	
	
	jQuery.extend({
	
		Deferred: function( func ) {
			var tuples = [
					// action, add listener, listener list, final state
					[ "resolve", "done", jQuery.Callbacks("once memory"), "resolved" ],
					[ "reject", "fail", jQuery.Callbacks("once memory"), "rejected" ],
					[ "notify", "progress", jQuery.Callbacks("memory") ]
				],
				state = "pending",
				promise = {
					state: function() {
						return state;
					},
					always: function() {
						deferred.done( arguments ).fail( arguments );
						return this;
					},
					then: function( /* fnDone, fnFail, fnProgress */ ) {
						var fns = arguments;
						return jQuery.Deferred(function( newDefer ) {
							jQuery.each( tuples, function( i, tuple ) {
								var fn = jQuery.isFunction( fns[ i ] ) && fns[ i ];
								// deferred[ done | fail | progress ] for forwarding actions to newDefer
								deferred[ tuple[1] ](function() {
									var returned = fn && fn.apply( this, arguments );
									if ( returned && jQuery.isFunction( returned.promise ) ) {
										returned.promise()
											.done( newDefer.resolve )
											.fail( newDefer.reject )
											.progress( newDefer.notify );
									} else {
										newDefer[ tuple[ 0 ] + "With" ]( this === promise ? newDefer.promise() : this, fn ? [ returned ] : arguments );
									}
								});
							});
							fns = null;
						}).promise();
					},
					// Get a promise for this deferred
					// If obj is provided, the promise aspect is added to the object
					promise: function( obj ) {
						return obj != null ? jQuery.extend( obj, promise ) : promise;
					}
				},
				deferred = {};
	
			// Keep pipe for back-compat
			promise.pipe = promise.then;
	
			// Add list-specific methods
			jQuery.each( tuples, function( i, tuple ) {
				var list = tuple[ 2 ],
					stateString = tuple[ 3 ];
	
				// promise[ done | fail | progress ] = list.add
				promise[ tuple[1] ] = list.add;
	
				// Handle state
				if ( stateString ) {
					list.add(function() {
						// state = [ resolved | rejected ]
						state = stateString;
	
					// [ reject_list | resolve_list ].disable; progress_list.lock
					}, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );
				}
	
				// deferred[ resolve | reject | notify ]
				deferred[ tuple[0] ] = function() {
					deferred[ tuple[0] + "With" ]( this === deferred ? promise : this, arguments );
					return this;
				};
				deferred[ tuple[0] + "With" ] = list.fireWith;
			});
	
			// Make the deferred a promise
			promise.promise( deferred );
	
			// Call given func if any
			if ( func ) {
				func.call( deferred, deferred );
			}
	
			// All done!
			return deferred;
		},
	
		// Deferred helper
		when: function( subordinate /* , ..., subordinateN */ ) {
			var i = 0,
				resolveValues = slice.call( arguments ),
				length = resolveValues.length,
	
				// the count of uncompleted subordinates
				remaining = length !== 1 || ( subordinate && jQuery.isFunction( subordinate.promise ) ) ? length : 0,
	
				// the master Deferred. If resolveValues consist of only a single Deferred, just use that.
				deferred = remaining === 1 ? subordinate : jQuery.Deferred(),
	
				// Update function for both resolve and progress values
				updateFunc = function( i, contexts, values ) {
					return function( value ) {
						contexts[ i ] = this;
						values[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
						if ( values === progressValues ) {
							deferred.notifyWith( contexts, values );
						} else if ( !( --remaining ) ) {
							deferred.resolveWith( contexts, values );
						}
					};
				},
	
				progressValues, progressContexts, resolveContexts;
	
			// Add listeners to Deferred subordinates; treat others as resolved
			if ( length > 1 ) {
				progressValues = new Array( length );
				progressContexts = new Array( length );
				resolveContexts = new Array( length );
				for ( ; i < length; i++ ) {
					if ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) {
						resolveValues[ i ].promise()
							.done( updateFunc( i, resolveContexts, resolveValues ) )
							.fail( deferred.reject )
							.progress( updateFunc( i, progressContexts, progressValues ) );
					} else {
						--remaining;
					}
				}
			}
	
			// If we're not waiting on anything, resolve the master
			if ( !remaining ) {
				deferred.resolveWith( resolveContexts, resolveValues );
			}
	
			return deferred.promise();
		}
	});
	
	
	// The deferred used on DOM ready
	var readyList;
	
	jQuery.fn.ready = function( fn ) {
		// Add the callback
		jQuery.ready.promise().done( fn );
	
		return this;
	};
	
	jQuery.extend({
		// Is the DOM ready to be used? Set to true once it occurs.
		isReady: false,
	
		// A counter to track how many items to wait for before
		// the ready event fires. See #6781
		readyWait: 1,
	
		// Hold (or release) the ready event
		holdReady: function( hold ) {
			if ( hold ) {
				jQuery.readyWait++;
			} else {
				jQuery.ready( true );
			}
		},
	
		// Handle when the DOM is ready
		ready: function( wait ) {
	
			// Abort if there are pending holds or we're already ready
			if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
				return;
			}
	
			// Remember that the DOM is ready
			jQuery.isReady = true;
	
			// If a normal DOM Ready event fired, decrement, and wait if need be
			if ( wait !== true && --jQuery.readyWait > 0 ) {
				return;
			}
	
			// If there are functions bound, to execute
			readyList.resolveWith( document, [ jQuery ] );
	
			// Trigger any bound ready events
			if ( jQuery.fn.triggerHandler ) {
				jQuery( document ).triggerHandler( "ready" );
				jQuery( document ).off( "ready" );
			}
		}
	});
	
	/**
	 * The ready event handler and self cleanup method
	 */
	function completed() {
		document.removeEventListener( "DOMContentLoaded", completed, false );
		window.removeEventListener( "load", completed, false );
		jQuery.ready();
	}
	
	jQuery.ready.promise = function( obj ) {
		if ( !readyList ) {
	
			readyList = jQuery.Deferred();
	
			// Catch cases where $(document).ready() is called after the browser event has already occurred.
			// We once tried to use readyState "interactive" here, but it caused issues like the one
			// discovered by ChrisS here: http://bugs.jquery.com/ticket/12282#comment:15
			if ( document.readyState === "complete" ) {
				// Handle it asynchronously to allow scripts the opportunity to delay ready
				setTimeout( jQuery.ready );
	
			} else {
	
				// Use the handy event callback
				document.addEventListener( "DOMContentLoaded", completed, false );
	
				// A fallback to window.onload, that will always work
				window.addEventListener( "load", completed, false );
			}
		}
		return readyList.promise( obj );
	};
	
	// Kick off the DOM ready check even if the user does not
	jQuery.ready.promise();
	
	
	
	
	// Multifunctional method to get and set values of a collection
	// The value/s can optionally be executed if it's a function
	var access = jQuery.access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
		var i = 0,
			len = elems.length,
			bulk = key == null;
	
		// Sets many values
		if ( jQuery.type( key ) === "object" ) {
			chainable = true;
			for ( i in key ) {
				jQuery.access( elems, fn, i, key[i], true, emptyGet, raw );
			}
	
		// Sets one value
		} else if ( value !== undefined ) {
			chainable = true;
	
			if ( !jQuery.isFunction( value ) ) {
				raw = true;
			}
	
			if ( bulk ) {
				// Bulk operations run against the entire set
				if ( raw ) {
					fn.call( elems, value );
					fn = null;
	
				// ...except when executing function values
				} else {
					bulk = fn;
					fn = function( elem, key, value ) {
						return bulk.call( jQuery( elem ), value );
					};
				}
			}
	
			if ( fn ) {
				for ( ; i < len; i++ ) {
					fn( elems[i], key, raw ? value : value.call( elems[i], i, fn( elems[i], key ) ) );
				}
			}
		}
	
		return chainable ?
			elems :
	
			// Gets
			bulk ?
				fn.call( elems ) :
				len ? fn( elems[0], key ) : emptyGet;
	};
	
	
	/**
	 * Determines whether an object can have data
	 */
	jQuery.acceptData = function( owner ) {
		// Accepts only:
		//  - Node
		//    - Node.ELEMENT_NODE
		//    - Node.DOCUMENT_NODE
		//  - Object
		//    - Any
		/* jshint -W018 */
		return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
	};
	
	
	function Data() {
		// Support: Android<4,
		// Old WebKit does not have Object.preventExtensions/freeze method,
		// return new empty object instead with no [[set]] accessor
		Object.defineProperty( this.cache = {}, 0, {
			get: function() {
				return {};
			}
		});
	
		this.expando = jQuery.expando + Data.uid++;
	}
	
	Data.uid = 1;
	Data.accepts = jQuery.acceptData;
	
	Data.prototype = {
		key: function( owner ) {
			// We can accept data for non-element nodes in modern browsers,
			// but we should not, see #8335.
			// Always return the key for a frozen object.
			if ( !Data.accepts( owner ) ) {
				return 0;
			}
	
			var descriptor = {},
				// Check if the owner object already has a cache key
				unlock = owner[ this.expando ];
	
			// If not, create one
			if ( !unlock ) {
				unlock = Data.uid++;
	
				// Secure it in a non-enumerable, non-writable property
				try {
					descriptor[ this.expando ] = { value: unlock };
					Object.defineProperties( owner, descriptor );
	
				// Support: Android<4
				// Fallback to a less secure definition
				} catch ( e ) {
					descriptor[ this.expando ] = unlock;
					jQuery.extend( owner, descriptor );
				}
			}
	
			// Ensure the cache object
			if ( !this.cache[ unlock ] ) {
				this.cache[ unlock ] = {};
			}
	
			return unlock;
		},
		set: function( owner, data, value ) {
			var prop,
				// There may be an unlock assigned to this node,
				// if there is no entry for this "owner", create one inline
				// and set the unlock as though an owner entry had always existed
				unlock = this.key( owner ),
				cache = this.cache[ unlock ];
	
			// Handle: [ owner, key, value ] args
			if ( typeof data === "string" ) {
				cache[ data ] = value;
	
			// Handle: [ owner, { properties } ] args
			} else {
				// Fresh assignments by object are shallow copied
				if ( jQuery.isEmptyObject( cache ) ) {
					jQuery.extend( this.cache[ unlock ], data );
				// Otherwise, copy the properties one-by-one to the cache object
				} else {
					for ( prop in data ) {
						cache[ prop ] = data[ prop ];
					}
				}
			}
			return cache;
		},
		get: function( owner, key ) {
			// Either a valid cache is found, or will be created.
			// New caches will be created and the unlock returned,
			// allowing direct access to the newly created
			// empty data object. A valid owner object must be provided.
			var cache = this.cache[ this.key( owner ) ];
	
			return key === undefined ?
				cache : cache[ key ];
		},
		access: function( owner, key, value ) {
			var stored;
			// In cases where either:
			//
			//   1. No key was specified
			//   2. A string key was specified, but no value provided
			//
			// Take the "read" path and allow the get method to determine
			// which value to return, respectively either:
			//
			//   1. The entire cache object
			//   2. The data stored at the key
			//
			if ( key === undefined ||
					((key && typeof key === "string") && value === undefined) ) {
	
				stored = this.get( owner, key );
	
				return stored !== undefined ?
					stored : this.get( owner, jQuery.camelCase(key) );
			}
	
			// [*]When the key is not a string, or both a key and value
			// are specified, set or extend (existing objects) with either:
			//
			//   1. An object of properties
			//   2. A key and value
			//
			this.set( owner, key, value );
	
			// Since the "set" path can have two possible entry points
			// return the expected data based on which path was taken[*]
			return value !== undefined ? value : key;
		},
		remove: function( owner, key ) {
			var i, name, camel,
				unlock = this.key( owner ),
				cache = this.cache[ unlock ];
	
			if ( key === undefined ) {
				this.cache[ unlock ] = {};
	
			} else {
				// Support array or space separated string of keys
				if ( jQuery.isArray( key ) ) {
					// If "name" is an array of keys...
					// When data is initially created, via ("key", "val") signature,
					// keys will be converted to camelCase.
					// Since there is no way to tell _how_ a key was added, remove
					// both plain key and camelCase key. #12786
					// This will only penalize the array argument path.
					name = key.concat( key.map( jQuery.camelCase ) );
				} else {
					camel = jQuery.camelCase( key );
					// Try the string as a key before any manipulation
					if ( key in cache ) {
						name = [ key, camel ];
					} else {
						// If a key with the spaces exists, use it.
						// Otherwise, create an array by matching non-whitespace
						name = camel;
						name = name in cache ?
							[ name ] : ( name.match( rnotwhite ) || [] );
					}
				}
	
				i = name.length;
				while ( i-- ) {
					delete cache[ name[ i ] ];
				}
			}
		},
		hasData: function( owner ) {
			return !jQuery.isEmptyObject(
				this.cache[ owner[ this.expando ] ] || {}
			);
		},
		discard: function( owner ) {
			if ( owner[ this.expando ] ) {
				delete this.cache[ owner[ this.expando ] ];
			}
		}
	};
	var data_priv = new Data();
	
	var data_user = new Data();
	
	
	
	//	Implementation Summary
	//
	//	1. Enforce API surface and semantic compatibility with 1.9.x branch
	//	2. Improve the module's maintainability by reducing the storage
	//		paths to a single mechanism.
	//	3. Use the same single mechanism to support "private" and "user" data.
	//	4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
	//	5. Avoid exposing implementation details on user objects (eg. expando properties)
	//	6. Provide a clear path for implementation upgrade to WeakMap in 2014
	
	var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
		rmultiDash = /([A-Z])/g;
	
	function dataAttr( elem, key, data ) {
		var name;
	
		// If nothing was found internally, try to fetch any
		// data from the HTML5 data-* attribute
		if ( data === undefined && elem.nodeType === 1 ) {
			name = "data-" + key.replace( rmultiDash, "-$1" ).toLowerCase();
			data = elem.getAttribute( name );
	
			if ( typeof data === "string" ) {
				try {
					data = data === "true" ? true :
						data === "false" ? false :
						data === "null" ? null :
						// Only convert to a number if it doesn't change the string
						+data + "" === data ? +data :
						rbrace.test( data ) ? jQuery.parseJSON( data ) :
						data;
				} catch( e ) {}
	
				// Make sure we set the data so it isn't changed later
				data_user.set( elem, key, data );
			} else {
				data = undefined;
			}
		}
		return data;
	}
	
	jQuery.extend({
		hasData: function( elem ) {
			return data_user.hasData( elem ) || data_priv.hasData( elem );
		},
	
		data: function( elem, name, data ) {
			return data_user.access( elem, name, data );
		},
	
		removeData: function( elem, name ) {
			data_user.remove( elem, name );
		},
	
		// TODO: Now that all calls to _data and _removeData have been replaced
		// with direct calls to data_priv methods, these can be deprecated.
		_data: function( elem, name, data ) {
			return data_priv.access( elem, name, data );
		},
	
		_removeData: function( elem, name ) {
			data_priv.remove( elem, name );
		}
	});
	
	jQuery.fn.extend({
		data: function( key, value ) {
			var i, name, data,
				elem = this[ 0 ],
				attrs = elem && elem.attributes;
	
			// Gets all values
			if ( key === undefined ) {
				if ( this.length ) {
					data = data_user.get( elem );
	
					if ( elem.nodeType === 1 && !data_priv.get( elem, "hasDataAttrs" ) ) {
						i = attrs.length;
						while ( i-- ) {
	
							// Support: IE11+
							// The attrs elements can be null (#14894)
							if ( attrs[ i ] ) {
								name = attrs[ i ].name;
								if ( name.indexOf( "data-" ) === 0 ) {
									name = jQuery.camelCase( name.slice(5) );
									dataAttr( elem, name, data[ name ] );
								}
							}
						}
						data_priv.set( elem, "hasDataAttrs", true );
					}
				}
	
				return data;
			}
	
			// Sets multiple values
			if ( typeof key === "object" ) {
				return this.each(function() {
					data_user.set( this, key );
				});
			}
	
			return access( this, function( value ) {
				var data,
					camelKey = jQuery.camelCase( key );
	
				// The calling jQuery object (element matches) is not empty
				// (and therefore has an element appears at this[ 0 ]) and the
				// `value` parameter was not undefined. An empty jQuery object
				// will result in `undefined` for elem = this[ 0 ] which will
				// throw an exception if an attempt to read a data cache is made.
				if ( elem && value === undefined ) {
					// Attempt to get data from the cache
					// with the key as-is
					data = data_user.get( elem, key );
					if ( data !== undefined ) {
						return data;
					}
	
					// Attempt to get data from the cache
					// with the key camelized
					data = data_user.get( elem, camelKey );
					if ( data !== undefined ) {
						return data;
					}
	
					// Attempt to "discover" the data in
					// HTML5 custom data-* attrs
					data = dataAttr( elem, camelKey, undefined );
					if ( data !== undefined ) {
						return data;
					}
	
					// We tried really hard, but the data doesn't exist.
					return;
				}
	
				// Set the data...
				this.each(function() {
					// First, attempt to store a copy or reference of any
					// data that might've been store with a camelCased key.
					var data = data_user.get( this, camelKey );
	
					// For HTML5 data-* attribute interop, we have to
					// store property names with dashes in a camelCase form.
					// This might not apply to all properties...*
					data_user.set( this, camelKey, value );
	
					// *... In the case of properties that might _actually_
					// have dashes, we need to also store a copy of that
					// unchanged property.
					if ( key.indexOf("-") !== -1 && data !== undefined ) {
						data_user.set( this, key, value );
					}
				});
			}, null, value, arguments.length > 1, null, true );
		},
	
		removeData: function( key ) {
			return this.each(function() {
				data_user.remove( this, key );
			});
		}
	});
	
	
	jQuery.extend({
		queue: function( elem, type, data ) {
			var queue;
	
			if ( elem ) {
				type = ( type || "fx" ) + "queue";
				queue = data_priv.get( elem, type );
	
				// Speed up dequeue by getting out quickly if this is just a lookup
				if ( data ) {
					if ( !queue || jQuery.isArray( data ) ) {
						queue = data_priv.access( elem, type, jQuery.makeArray(data) );
					} else {
						queue.push( data );
					}
				}
				return queue || [];
			}
		},
	
		dequeue: function( elem, type ) {
			type = type || "fx";
	
			var queue = jQuery.queue( elem, type ),
				startLength = queue.length,
				fn = queue.shift(),
				hooks = jQuery._queueHooks( elem, type ),
				next = function() {
					jQuery.dequeue( elem, type );
				};
	
			// If the fx queue is dequeued, always remove the progress sentinel
			if ( fn === "inprogress" ) {
				fn = queue.shift();
				startLength--;
			}
	
			if ( fn ) {
	
				// Add a progress sentinel to prevent the fx queue from being
				// automatically dequeued
				if ( type === "fx" ) {
					queue.unshift( "inprogress" );
				}
	
				// Clear up the last queue stop function
				delete hooks.stop;
				fn.call( elem, next, hooks );
			}
	
			if ( !startLength && hooks ) {
				hooks.empty.fire();
			}
		},
	
		// Not public - generate a queueHooks object, or return the current one
		_queueHooks: function( elem, type ) {
			var key = type + "queueHooks";
			return data_priv.get( elem, key ) || data_priv.access( elem, key, {
				empty: jQuery.Callbacks("once memory").add(function() {
					data_priv.remove( elem, [ type + "queue", key ] );
				})
			});
		}
	});
	
	jQuery.fn.extend({
		queue: function( type, data ) {
			var setter = 2;
	
			if ( typeof type !== "string" ) {
				data = type;
				type = "fx";
				setter--;
			}
	
			if ( arguments.length < setter ) {
				return jQuery.queue( this[0], type );
			}
	
			return data === undefined ?
				this :
				this.each(function() {
					var queue = jQuery.queue( this, type, data );
	
					// Ensure a hooks for this queue
					jQuery._queueHooks( this, type );
	
					if ( type === "fx" && queue[0] !== "inprogress" ) {
						jQuery.dequeue( this, type );
					}
				});
		},
		dequeue: function( type ) {
			return this.each(function() {
				jQuery.dequeue( this, type );
			});
		},
		clearQueue: function( type ) {
			return this.queue( type || "fx", [] );
		},
		// Get a promise resolved when queues of a certain type
		// are emptied (fx is the type by default)
		promise: function( type, obj ) {
			var tmp,
				count = 1,
				defer = jQuery.Deferred(),
				elements = this,
				i = this.length,
				resolve = function() {
					if ( !( --count ) ) {
						defer.resolveWith( elements, [ elements ] );
					}
				};
	
			if ( typeof type !== "string" ) {
				obj = type;
				type = undefined;
			}
			type = type || "fx";
	
			while ( i-- ) {
				tmp = data_priv.get( elements[ i ], type + "queueHooks" );
				if ( tmp && tmp.empty ) {
					count++;
					tmp.empty.add( resolve );
				}
			}
			resolve();
			return defer.promise( obj );
		}
	});
	var pnum = (/[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/).source;
	
	var cssExpand = [ "Top", "Right", "Bottom", "Left" ];
	
	var isHidden = function( elem, el ) {
			// isHidden might be called from jQuery#filter function;
			// in that case, element will be second argument
			elem = el || elem;
			return jQuery.css( elem, "display" ) === "none" || !jQuery.contains( elem.ownerDocument, elem );
		};
	
	var rcheckableType = (/^(?:checkbox|radio)$/i);
	
	
	
	(function() {
		var fragment = document.createDocumentFragment(),
			div = fragment.appendChild( document.createElement( "div" ) ),
			input = document.createElement( "input" );
	
		// Support: Safari<=5.1
		// Check state lost if the name is set (#11217)
		// Support: Windows Web Apps (WWA)
		// `name` and `type` must use .setAttribute for WWA (#14901)
		input.setAttribute( "type", "radio" );
		input.setAttribute( "checked", "checked" );
		input.setAttribute( "name", "t" );
	
		div.appendChild( input );
	
		// Support: Safari<=5.1, Android<4.2
		// Older WebKit doesn't clone checked state correctly in fragments
		support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;
	
		// Support: IE<=11+
		// Make sure textarea (and checkbox) defaultValue is properly cloned
		div.innerHTML = "<textarea>x</textarea>";
		support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;
	})();
	var strundefined = typeof undefined;
	
	
	
	support.focusinBubbles = "onfocusin" in window;
	
	
	var
		rkeyEvent = /^key/,
		rmouseEvent = /^(?:mouse|pointer|contextmenu)|click/,
		rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
		rtypenamespace = /^([^.]*)(?:\.(.+)|)$/;
	
	function returnTrue() {
		return true;
	}
	
	function returnFalse() {
		return false;
	}
	
	function safeActiveElement() {
		try {
			return document.activeElement;
		} catch ( err ) { }
	}
	
	/*
	 * Helper functions for managing events -- not part of the public interface.
	 * Props to Dean Edwards' addEvent library for many of the ideas.
	 */
	jQuery.event = {
	
		global: {},
	
		add: function( elem, types, handler, data, selector ) {
	
			var handleObjIn, eventHandle, tmp,
				events, t, handleObj,
				special, handlers, type, namespaces, origType,
				elemData = data_priv.get( elem );
	
			// Don't attach events to noData or text/comment nodes (but allow plain objects)
			if ( !elemData ) {
				return;
			}
	
			// Caller can pass in an object of custom data in lieu of the handler
			if ( handler.handler ) {
				handleObjIn = handler;
				handler = handleObjIn.handler;
				selector = handleObjIn.selector;
			}
	
			// Make sure that the handler has a unique ID, used to find/remove it later
			if ( !handler.guid ) {
				handler.guid = jQuery.guid++;
			}
	
			// Init the element's event structure and main handler, if this is the first
			if ( !(events = elemData.events) ) {
				events = elemData.events = {};
			}
			if ( !(eventHandle = elemData.handle) ) {
				eventHandle = elemData.handle = function( e ) {
					// Discard the second event of a jQuery.event.trigger() and
					// when an event is called after a page has unloaded
					return typeof jQuery !== strundefined && jQuery.event.triggered !== e.type ?
						jQuery.event.dispatch.apply( elem, arguments ) : undefined;
				};
			}
	
			// Handle multiple events separated by a space
			types = ( types || "" ).match( rnotwhite ) || [ "" ];
			t = types.length;
			while ( t-- ) {
				tmp = rtypenamespace.exec( types[t] ) || [];
				type = origType = tmp[1];
				namespaces = ( tmp[2] || "" ).split( "." ).sort();
	
				// There *must* be a type, no attaching namespace-only handlers
				if ( !type ) {
					continue;
				}
	
				// If event changes its type, use the special event handlers for the changed type
				special = jQuery.event.special[ type ] || {};
	
				// If selector defined, determine special event api type, otherwise given type
				type = ( selector ? special.delegateType : special.bindType ) || type;
	
				// Update special based on newly reset type
				special = jQuery.event.special[ type ] || {};
	
				// handleObj is passed to all event handlers
				handleObj = jQuery.extend({
					type: type,
					origType: origType,
					data: data,
					handler: handler,
					guid: handler.guid,
					selector: selector,
					needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
					namespace: namespaces.join(".")
				}, handleObjIn );
	
				// Init the event handler queue if we're the first
				if ( !(handlers = events[ type ]) ) {
					handlers = events[ type ] = [];
					handlers.delegateCount = 0;
	
					// Only use addEventListener if the special events handler returns false
					if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
						if ( elem.addEventListener ) {
							elem.addEventListener( type, eventHandle, false );
						}
					}
				}
	
				if ( special.add ) {
					special.add.call( elem, handleObj );
	
					if ( !handleObj.handler.guid ) {
						handleObj.handler.guid = handler.guid;
					}
				}
	
				// Add to the element's handler list, delegates in front
				if ( selector ) {
					handlers.splice( handlers.delegateCount++, 0, handleObj );
				} else {
					handlers.push( handleObj );
				}
	
				// Keep track of which events have ever been used, for event optimization
				jQuery.event.global[ type ] = true;
			}
	
		},
	
		// Detach an event or set of events from an element
		remove: function( elem, types, handler, selector, mappedTypes ) {
	
			var j, origCount, tmp,
				events, t, handleObj,
				special, handlers, type, namespaces, origType,
				elemData = data_priv.hasData( elem ) && data_priv.get( elem );
	
			if ( !elemData || !(events = elemData.events) ) {
				return;
			}
	
			// Once for each type.namespace in types; type may be omitted
			types = ( types || "" ).match( rnotwhite ) || [ "" ];
			t = types.length;
			while ( t-- ) {
				tmp = rtypenamespace.exec( types[t] ) || [];
				type = origType = tmp[1];
				namespaces = ( tmp[2] || "" ).split( "." ).sort();
	
				// Unbind all events (on this namespace, if provided) for the element
				if ( !type ) {
					for ( type in events ) {
						jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
					}
					continue;
				}
	
				special = jQuery.event.special[ type ] || {};
				type = ( selector ? special.delegateType : special.bindType ) || type;
				handlers = events[ type ] || [];
				tmp = tmp[2] && new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" );
	
				// Remove matching events
				origCount = j = handlers.length;
				while ( j-- ) {
					handleObj = handlers[ j ];
	
					if ( ( mappedTypes || origType === handleObj.origType ) &&
						( !handler || handler.guid === handleObj.guid ) &&
						( !tmp || tmp.test( handleObj.namespace ) ) &&
						( !selector || selector === handleObj.selector || selector === "**" && handleObj.selector ) ) {
						handlers.splice( j, 1 );
	
						if ( handleObj.selector ) {
							handlers.delegateCount--;
						}
						if ( special.remove ) {
							special.remove.call( elem, handleObj );
						}
					}
				}
	
				// Remove generic event handler if we removed something and no more handlers exist
				// (avoids potential for endless recursion during removal of special event handlers)
				if ( origCount && !handlers.length ) {
					if ( !special.teardown || special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
						jQuery.removeEvent( elem, type, elemData.handle );
					}
	
					delete events[ type ];
				}
			}
	
			// Remove the expando if it's no longer used
			if ( jQuery.isEmptyObject( events ) ) {
				delete elemData.handle;
				data_priv.remove( elem, "events" );
			}
		},
	
		trigger: function( event, data, elem, onlyHandlers ) {
	
			var i, cur, tmp, bubbleType, ontype, handle, special,
				eventPath = [ elem || document ],
				type = hasOwn.call( event, "type" ) ? event.type : event,
				namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split(".") : [];
	
			cur = tmp = elem = elem || document;
	
			// Don't do events on text and comment nodes
			if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
				return;
			}
	
			// focus/blur morphs to focusin/out; ensure we're not firing them right now
			if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
				return;
			}
	
			if ( type.indexOf(".") >= 0 ) {
				// Namespaced trigger; create a regexp to match event type in handle()
				namespaces = type.split(".");
				type = namespaces.shift();
				namespaces.sort();
			}
			ontype = type.indexOf(":") < 0 && "on" + type;
	
			// Caller can pass in a jQuery.Event object, Object, or just an event type string
			event = event[ jQuery.expando ] ?
				event :
				new jQuery.Event( type, typeof event === "object" && event );
	
			// Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
			event.isTrigger = onlyHandlers ? 2 : 3;
			event.namespace = namespaces.join(".");
			event.namespace_re = event.namespace ?
				new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" ) :
				null;
	
			// Clean up the event in case it is being reused
			event.result = undefined;
			if ( !event.target ) {
				event.target = elem;
			}
	
			// Clone any incoming data and prepend the event, creating the handler arg list
			data = data == null ?
				[ event ] :
				jQuery.makeArray( data, [ event ] );
	
			// Allow special events to draw outside the lines
			special = jQuery.event.special[ type ] || {};
			if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
				return;
			}
	
			// Determine event propagation path in advance, per W3C events spec (#9951)
			// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
			if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {
	
				bubbleType = special.delegateType || type;
				if ( !rfocusMorph.test( bubbleType + type ) ) {
					cur = cur.parentNode;
				}
				for ( ; cur; cur = cur.parentNode ) {
					eventPath.push( cur );
					tmp = cur;
				}
	
				// Only add window if we got to document (e.g., not plain obj or detached DOM)
				if ( tmp === (elem.ownerDocument || document) ) {
					eventPath.push( tmp.defaultView || tmp.parentWindow || window );
				}
			}
	
			// Fire handlers on the event path
			i = 0;
			while ( (cur = eventPath[i++]) && !event.isPropagationStopped() ) {
	
				event.type = i > 1 ?
					bubbleType :
					special.bindType || type;
	
				// jQuery handler
				handle = ( data_priv.get( cur, "events" ) || {} )[ event.type ] && data_priv.get( cur, "handle" );
				if ( handle ) {
					handle.apply( cur, data );
				}
	
				// Native handler
				handle = ontype && cur[ ontype ];
				if ( handle && handle.apply && jQuery.acceptData( cur ) ) {
					event.result = handle.apply( cur, data );
					if ( event.result === false ) {
						event.preventDefault();
					}
				}
			}
			event.type = type;
	
			// If nobody prevented the default action, do it now
			if ( !onlyHandlers && !event.isDefaultPrevented() ) {
	
				if ( (!special._default || special._default.apply( eventPath.pop(), data ) === false) &&
					jQuery.acceptData( elem ) ) {
	
					// Call a native DOM method on the target with the same name name as the event.
					// Don't do default actions on window, that's where global variables be (#6170)
					if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) {
	
						// Don't re-trigger an onFOO event when we call its FOO() method
						tmp = elem[ ontype ];
	
						if ( tmp ) {
							elem[ ontype ] = null;
						}
	
						// Prevent re-triggering of the same event, since we already bubbled it above
						jQuery.event.triggered = type;
						elem[ type ]();
						jQuery.event.triggered = undefined;
	
						if ( tmp ) {
							elem[ ontype ] = tmp;
						}
					}
				}
			}
	
			return event.result;
		},
	
		dispatch: function( event ) {
	
			// Make a writable jQuery.Event from the native event object
			event = jQuery.event.fix( event );
	
			var i, j, ret, matched, handleObj,
				handlerQueue = [],
				args = slice.call( arguments ),
				handlers = ( data_priv.get( this, "events" ) || {} )[ event.type ] || [],
				special = jQuery.event.special[ event.type ] || {};
	
			// Use the fix-ed jQuery.Event rather than the (read-only) native event
			args[0] = event;
			event.delegateTarget = this;
	
			// Call the preDispatch hook for the mapped type, and let it bail if desired
			if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
				return;
			}
	
			// Determine handlers
			handlerQueue = jQuery.event.handlers.call( this, event, handlers );
	
			// Run delegates first; they may want to stop propagation beneath us
			i = 0;
			while ( (matched = handlerQueue[ i++ ]) && !event.isPropagationStopped() ) {
				event.currentTarget = matched.elem;
	
				j = 0;
				while ( (handleObj = matched.handlers[ j++ ]) && !event.isImmediatePropagationStopped() ) {
	
					// Triggered event must either 1) have no namespace, or 2) have namespace(s)
					// a subset or equal to those in the bound event (both can have no namespace).
					if ( !event.namespace_re || event.namespace_re.test( handleObj.namespace ) ) {
	
						event.handleObj = handleObj;
						event.data = handleObj.data;
	
						ret = ( (jQuery.event.special[ handleObj.origType ] || {}).handle || handleObj.handler )
								.apply( matched.elem, args );
	
						if ( ret !== undefined ) {
							if ( (event.result = ret) === false ) {
								event.preventDefault();
								event.stopPropagation();
							}
						}
					}
				}
			}
	
			// Call the postDispatch hook for the mapped type
			if ( special.postDispatch ) {
				special.postDispatch.call( this, event );
			}
	
			return event.result;
		},
	
		handlers: function( event, handlers ) {
			var i, matches, sel, handleObj,
				handlerQueue = [],
				delegateCount = handlers.delegateCount,
				cur = event.target;
	
			// Find delegate handlers
			// Black-hole SVG <use> instance trees (#13180)
			// Avoid non-left-click bubbling in Firefox (#3861)
			if ( delegateCount && cur.nodeType && (!event.button || event.type !== "click") ) {
	
				for ( ; cur !== this; cur = cur.parentNode || this ) {
	
					// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
					if ( cur.disabled !== true || event.type !== "click" ) {
						matches = [];
						for ( i = 0; i < delegateCount; i++ ) {
							handleObj = handlers[ i ];
	
							// Don't conflict with Object.prototype properties (#13203)
							sel = handleObj.selector + " ";
	
							if ( matches[ sel ] === undefined ) {
								matches[ sel ] = handleObj.needsContext ?
									jQuery( sel, this ).index( cur ) >= 0 :
									jQuery.find( sel, this, null, [ cur ] ).length;
							}
							if ( matches[ sel ] ) {
								matches.push( handleObj );
							}
						}
						if ( matches.length ) {
							handlerQueue.push({ elem: cur, handlers: matches });
						}
					}
				}
			}
	
			// Add the remaining (directly-bound) handlers
			if ( delegateCount < handlers.length ) {
				handlerQueue.push({ elem: this, handlers: handlers.slice( delegateCount ) });
			}
	
			return handlerQueue;
		},
	
		// Includes some event props shared by KeyEvent and MouseEvent
		props: "altKey bubbles cancelable ctrlKey currentTarget eventPhase metaKey relatedTarget shiftKey target timeStamp view which".split(" "),
	
		fixHooks: {},
	
		keyHooks: {
			props: "char charCode key keyCode".split(" "),
			filter: function( event, original ) {
	
				// Add which for key events
				if ( event.which == null ) {
					event.which = original.charCode != null ? original.charCode : original.keyCode;
				}
	
				return event;
			}
		},
	
		mouseHooks: {
			props: "button buttons clientX clientY offsetX offsetY pageX pageY screenX screenY toElement".split(" "),
			filter: function( event, original ) {
				var eventDoc, doc, body,
					button = original.button;
	
				// Calculate pageX/Y if missing and clientX/Y available
				if ( event.pageX == null && original.clientX != null ) {
					eventDoc = event.target.ownerDocument || document;
					doc = eventDoc.documentElement;
					body = eventDoc.body;
	
					event.pageX = original.clientX + ( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) - ( doc && doc.clientLeft || body && body.clientLeft || 0 );
					event.pageY = original.clientY + ( doc && doc.scrollTop  || body && body.scrollTop  || 0 ) - ( doc && doc.clientTop  || body && body.clientTop  || 0 );
				}
	
				// Add which for click: 1 === left; 2 === middle; 3 === right
				// Note: button is not normalized, so don't use it
				if ( !event.which && button !== undefined ) {
					event.which = ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) );
				}
	
				return event;
			}
		},
	
		fix: function( event ) {
			if ( event[ jQuery.expando ] ) {
				return event;
			}
	
			// Create a writable copy of the event object and normalize some properties
			var i, prop, copy,
				type = event.type,
				originalEvent = event,
				fixHook = this.fixHooks[ type ];
	
			if ( !fixHook ) {
				this.fixHooks[ type ] = fixHook =
					rmouseEvent.test( type ) ? this.mouseHooks :
					rkeyEvent.test( type ) ? this.keyHooks :
					{};
			}
			copy = fixHook.props ? this.props.concat( fixHook.props ) : this.props;
	
			event = new jQuery.Event( originalEvent );
	
			i = copy.length;
			while ( i-- ) {
				prop = copy[ i ];
				event[ prop ] = originalEvent[ prop ];
			}
	
			// Support: Cordova 2.5 (WebKit) (#13255)
			// All events should have a target; Cordova deviceready doesn't
			if ( !event.target ) {
				event.target = document;
			}
	
			// Support: Safari 6.0+, Chrome<28
			// Target should not be a text node (#504, #13143)
			if ( event.target.nodeType === 3 ) {
				event.target = event.target.parentNode;
			}
	
			return fixHook.filter ? fixHook.filter( event, originalEvent ) : event;
		},
	
		special: {
			load: {
				// Prevent triggered image.load events from bubbling to window.load
				noBubble: true
			},
			focus: {
				// Fire native event if possible so blur/focus sequence is correct
				trigger: function() {
					if ( this !== safeActiveElement() && this.focus ) {
						this.focus();
						return false;
					}
				},
				delegateType: "focusin"
			},
			blur: {
				trigger: function() {
					if ( this === safeActiveElement() && this.blur ) {
						this.blur();
						return false;
					}
				},
				delegateType: "focusout"
			},
			click: {
				// For checkbox, fire native event so checked state will be right
				trigger: function() {
					if ( this.type === "checkbox" && this.click && jQuery.nodeName( this, "input" ) ) {
						this.click();
						return false;
					}
				},
	
				// For cross-browser consistency, don't fire native .click() on links
				_default: function( event ) {
					return jQuery.nodeName( event.target, "a" );
				}
			},
	
			beforeunload: {
				postDispatch: function( event ) {
	
					// Support: Firefox 20+
					// Firefox doesn't alert if the returnValue field is not set.
					if ( event.result !== undefined && event.originalEvent ) {
						event.originalEvent.returnValue = event.result;
					}
				}
			}
		},
	
		simulate: function( type, elem, event, bubble ) {
			// Piggyback on a donor event to simulate a different one.
			// Fake originalEvent to avoid donor's stopPropagation, but if the
			// simulated event prevents default then we do the same on the donor.
			var e = jQuery.extend(
				new jQuery.Event(),
				event,
				{
					type: type,
					isSimulated: true,
					originalEvent: {}
				}
			);
			if ( bubble ) {
				jQuery.event.trigger( e, null, elem );
			} else {
				jQuery.event.dispatch.call( elem, e );
			}
			if ( e.isDefaultPrevented() ) {
				event.preventDefault();
			}
		}
	};
	
	jQuery.removeEvent = function( elem, type, handle ) {
		if ( elem.removeEventListener ) {
			elem.removeEventListener( type, handle, false );
		}
	};
	
	jQuery.Event = function( src, props ) {
		// Allow instantiation without the 'new' keyword
		if ( !(this instanceof jQuery.Event) ) {
			return new jQuery.Event( src, props );
		}
	
		// Event object
		if ( src && src.type ) {
			this.originalEvent = src;
			this.type = src.type;
	
			// Events bubbling up the document may have been marked as prevented
			// by a handler lower down the tree; reflect the correct value.
			this.isDefaultPrevented = src.defaultPrevented ||
					src.defaultPrevented === undefined &&
					// Support: Android<4.0
					src.returnValue === false ?
				returnTrue :
				returnFalse;
	
		// Event type
		} else {
			this.type = src;
		}
	
		// Put explicitly provided properties onto the event object
		if ( props ) {
			jQuery.extend( this, props );
		}
	
		// Create a timestamp if incoming event doesn't have one
		this.timeStamp = src && src.timeStamp || jQuery.now();
	
		// Mark it as fixed
		this[ jQuery.expando ] = true;
	};
	
	// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
	// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
	jQuery.Event.prototype = {
		isDefaultPrevented: returnFalse,
		isPropagationStopped: returnFalse,
		isImmediatePropagationStopped: returnFalse,
	
		preventDefault: function() {
			var e = this.originalEvent;
	
			this.isDefaultPrevented = returnTrue;
	
			if ( e && e.preventDefault ) {
				e.preventDefault();
			}
		},
		stopPropagation: function() {
			var e = this.originalEvent;
	
			this.isPropagationStopped = returnTrue;
	
			if ( e && e.stopPropagation ) {
				e.stopPropagation();
			}
		},
		stopImmediatePropagation: function() {
			var e = this.originalEvent;
	
			this.isImmediatePropagationStopped = returnTrue;
	
			if ( e && e.stopImmediatePropagation ) {
				e.stopImmediatePropagation();
			}
	
			this.stopPropagation();
		}
	};
	
	// Create mouseenter/leave events using mouseover/out and event-time checks
	// Support: Chrome 15+
	jQuery.each({
		mouseenter: "mouseover",
		mouseleave: "mouseout",
		pointerenter: "pointerover",
		pointerleave: "pointerout"
	}, function( orig, fix ) {
		jQuery.event.special[ orig ] = {
			delegateType: fix,
			bindType: fix,
	
			handle: function( event ) {
				var ret,
					target = this,
					related = event.relatedTarget,
					handleObj = event.handleObj;
	
				// For mousenter/leave call the handler if related is outside the target.
				// NB: No relatedTarget if the mouse left/entered the browser window
				if ( !related || (related !== target && !jQuery.contains( target, related )) ) {
					event.type = handleObj.origType;
					ret = handleObj.handler.apply( this, arguments );
					event.type = fix;
				}
				return ret;
			}
		};
	});
	
	// Support: Firefox, Chrome, Safari
	// Create "bubbling" focus and blur events
	if ( !support.focusinBubbles ) {
		jQuery.each({ focus: "focusin", blur: "focusout" }, function( orig, fix ) {
	
			// Attach a single capturing handler on the document while someone wants focusin/focusout
			var handler = function( event ) {
					jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ), true );
				};
	
			jQuery.event.special[ fix ] = {
				setup: function() {
					var doc = this.ownerDocument || this,
						attaches = data_priv.access( doc, fix );
	
					if ( !attaches ) {
						doc.addEventListener( orig, handler, true );
					}
					data_priv.access( doc, fix, ( attaches || 0 ) + 1 );
				},
				teardown: function() {
					var doc = this.ownerDocument || this,
						attaches = data_priv.access( doc, fix ) - 1;
	
					if ( !attaches ) {
						doc.removeEventListener( orig, handler, true );
						data_priv.remove( doc, fix );
	
					} else {
						data_priv.access( doc, fix, attaches );
					}
				}
			};
		});
	}
	
	jQuery.fn.extend({
	
		on: function( types, selector, data, fn, /*INTERNAL*/ one ) {
			var origFn, type;
	
			// Types can be a map of types/handlers
			if ( typeof types === "object" ) {
				// ( types-Object, selector, data )
				if ( typeof selector !== "string" ) {
					// ( types-Object, data )
					data = data || selector;
					selector = undefined;
				}
				for ( type in types ) {
					this.on( type, selector, data, types[ type ], one );
				}
				return this;
			}
	
			if ( data == null && fn == null ) {
				// ( types, fn )
				fn = selector;
				data = selector = undefined;
			} else if ( fn == null ) {
				if ( typeof selector === "string" ) {
					// ( types, selector, fn )
					fn = data;
					data = undefined;
				} else {
					// ( types, data, fn )
					fn = data;
					data = selector;
					selector = undefined;
				}
			}
			if ( fn === false ) {
				fn = returnFalse;
			} else if ( !fn ) {
				return this;
			}
	
			if ( one === 1 ) {
				origFn = fn;
				fn = function( event ) {
					// Can use an empty set, since event contains the info
					jQuery().off( event );
					return origFn.apply( this, arguments );
				};
				// Use same guid so caller can remove using origFn
				fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
			}
			return this.each( function() {
				jQuery.event.add( this, types, fn, data, selector );
			});
		},
		one: function( types, selector, data, fn ) {
			return this.on( types, selector, data, fn, 1 );
		},
		off: function( types, selector, fn ) {
			var handleObj, type;
			if ( types && types.preventDefault && types.handleObj ) {
				// ( event )  dispatched jQuery.Event
				handleObj = types.handleObj;
				jQuery( types.delegateTarget ).off(
					handleObj.namespace ? handleObj.origType + "." + handleObj.namespace : handleObj.origType,
					handleObj.selector,
					handleObj.handler
				);
				return this;
			}
			if ( typeof types === "object" ) {
				// ( types-object [, selector] )
				for ( type in types ) {
					this.off( type, selector, types[ type ] );
				}
				return this;
			}
			if ( selector === false || typeof selector === "function" ) {
				// ( types [, fn] )
				fn = selector;
				selector = undefined;
			}
			if ( fn === false ) {
				fn = returnFalse;
			}
			return this.each(function() {
				jQuery.event.remove( this, types, fn, selector );
			});
		},
	
		trigger: function( type, data ) {
			return this.each(function() {
				jQuery.event.trigger( type, data, this );
			});
		},
		triggerHandler: function( type, data ) {
			var elem = this[0];
			if ( elem ) {
				return jQuery.event.trigger( type, data, elem, true );
			}
		}
	});
	
	
	var
		rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi,
		rtagName = /<([\w:]+)/,
		rhtml = /<|&#?\w+;/,
		rnoInnerhtml = /<(?:script|style|link)/i,
		// checked="checked" or checked
		rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
		rscriptType = /^$|\/(?:java|ecma)script/i,
		rscriptTypeMasked = /^true\/(.*)/,
		rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g,
	
		// We have to close these tags to support XHTML (#13200)
		wrapMap = {
	
			// Support: IE9
			option: [ 1, "<select multiple='multiple'>", "</select>" ],
	
			thead: [ 1, "<table>", "</table>" ],
			col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
			tr: [ 2, "<table><tbody>", "</tbody></table>" ],
			td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
	
			_default: [ 0, "", "" ]
		};
	
	// Support: IE9
	wrapMap.optgroup = wrapMap.option;
	
	wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
	wrapMap.th = wrapMap.td;
	
	// Support: 1.x compatibility
	// Manipulating tables requires a tbody
	function manipulationTarget( elem, content ) {
		return jQuery.nodeName( elem, "table" ) &&
			jQuery.nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ?
	
			elem.getElementsByTagName("tbody")[0] ||
				elem.appendChild( elem.ownerDocument.createElement("tbody") ) :
			elem;
	}
	
	// Replace/restore the type attribute of script elements for safe DOM manipulation
	function disableScript( elem ) {
		elem.type = (elem.getAttribute("type") !== null) + "/" + elem.type;
		return elem;
	}
	function restoreScript( elem ) {
		var match = rscriptTypeMasked.exec( elem.type );
	
		if ( match ) {
			elem.type = match[ 1 ];
		} else {
			elem.removeAttribute("type");
		}
	
		return elem;
	}
	
	// Mark scripts as having already been evaluated
	function setGlobalEval( elems, refElements ) {
		var i = 0,
			l = elems.length;
	
		for ( ; i < l; i++ ) {
			data_priv.set(
				elems[ i ], "globalEval", !refElements || data_priv.get( refElements[ i ], "globalEval" )
			);
		}
	}
	
	function cloneCopyEvent( src, dest ) {
		var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;
	
		if ( dest.nodeType !== 1 ) {
			return;
		}
	
		// 1. Copy private data: events, handlers, etc.
		if ( data_priv.hasData( src ) ) {
			pdataOld = data_priv.access( src );
			pdataCur = data_priv.set( dest, pdataOld );
			events = pdataOld.events;
	
			if ( events ) {
				delete pdataCur.handle;
				pdataCur.events = {};
	
				for ( type in events ) {
					for ( i = 0, l = events[ type ].length; i < l; i++ ) {
						jQuery.event.add( dest, type, events[ type ][ i ] );
					}
				}
			}
		}
	
		// 2. Copy user data
		if ( data_user.hasData( src ) ) {
			udataOld = data_user.access( src );
			udataCur = jQuery.extend( {}, udataOld );
	
			data_user.set( dest, udataCur );
		}
	}
	
	function getAll( context, tag ) {
		var ret = context.getElementsByTagName ? context.getElementsByTagName( tag || "*" ) :
				context.querySelectorAll ? context.querySelectorAll( tag || "*" ) :
				[];
	
		return tag === undefined || tag && jQuery.nodeName( context, tag ) ?
			jQuery.merge( [ context ], ret ) :
			ret;
	}
	
	// Fix IE bugs, see support tests
	function fixInput( src, dest ) {
		var nodeName = dest.nodeName.toLowerCase();
	
		// Fails to persist the checked state of a cloned checkbox or radio button.
		if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
			dest.checked = src.checked;
	
		// Fails to return the selected option to the default selected state when cloning options
		} else if ( nodeName === "input" || nodeName === "textarea" ) {
			dest.defaultValue = src.defaultValue;
		}
	}
	
	jQuery.extend({
		clone: function( elem, dataAndEvents, deepDataAndEvents ) {
			var i, l, srcElements, destElements,
				clone = elem.cloneNode( true ),
				inPage = jQuery.contains( elem.ownerDocument, elem );
	
			// Fix IE cloning issues
			if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
					!jQuery.isXMLDoc( elem ) ) {
	
				// We eschew Sizzle here for performance reasons: http://jsperf.com/getall-vs-sizzle/2
				destElements = getAll( clone );
				srcElements = getAll( elem );
	
				for ( i = 0, l = srcElements.length; i < l; i++ ) {
					fixInput( srcElements[ i ], destElements[ i ] );
				}
			}
	
			// Copy the events from the original to the clone
			if ( dataAndEvents ) {
				if ( deepDataAndEvents ) {
					srcElements = srcElements || getAll( elem );
					destElements = destElements || getAll( clone );
	
					for ( i = 0, l = srcElements.length; i < l; i++ ) {
						cloneCopyEvent( srcElements[ i ], destElements[ i ] );
					}
				} else {
					cloneCopyEvent( elem, clone );
				}
			}
	
			// Preserve script evaluation history
			destElements = getAll( clone, "script" );
			if ( destElements.length > 0 ) {
				setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
			}
	
			// Return the cloned set
			return clone;
		},
	
		buildFragment: function( elems, context, scripts, selection ) {
			var elem, tmp, tag, wrap, contains, j,
				fragment = context.createDocumentFragment(),
				nodes = [],
				i = 0,
				l = elems.length;
	
			for ( ; i < l; i++ ) {
				elem = elems[ i ];
	
				if ( elem || elem === 0 ) {
	
					// Add nodes directly
					if ( jQuery.type( elem ) === "object" ) {
						// Support: QtWebKit, PhantomJS
						// push.apply(_, arraylike) throws on ancient WebKit
						jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
	
					// Convert non-html into a text node
					} else if ( !rhtml.test( elem ) ) {
						nodes.push( context.createTextNode( elem ) );
	
					// Convert html into DOM nodes
					} else {
						tmp = tmp || fragment.appendChild( context.createElement("div") );
	
						// Deserialize a standard representation
						tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
						wrap = wrapMap[ tag ] || wrapMap._default;
						tmp.innerHTML = wrap[ 1 ] + elem.replace( rxhtmlTag, "<$1></$2>" ) + wrap[ 2 ];
	
						// Descend through wrappers to the right content
						j = wrap[ 0 ];
						while ( j-- ) {
							tmp = tmp.lastChild;
						}
	
						// Support: QtWebKit, PhantomJS
						// push.apply(_, arraylike) throws on ancient WebKit
						jQuery.merge( nodes, tmp.childNodes );
	
						// Remember the top-level container
						tmp = fragment.firstChild;
	
						// Ensure the created nodes are orphaned (#12392)
						tmp.textContent = "";
					}
				}
			}
	
			// Remove wrapper from fragment
			fragment.textContent = "";
	
			i = 0;
			while ( (elem = nodes[ i++ ]) ) {
	
				// #4087 - If origin and destination elements are the same, and this is
				// that element, do not do anything
				if ( selection && jQuery.inArray( elem, selection ) !== -1 ) {
					continue;
				}
	
				contains = jQuery.contains( elem.ownerDocument, elem );
	
				// Append to fragment
				tmp = getAll( fragment.appendChild( elem ), "script" );
	
				// Preserve script evaluation history
				if ( contains ) {
					setGlobalEval( tmp );
				}
	
				// Capture executables
				if ( scripts ) {
					j = 0;
					while ( (elem = tmp[ j++ ]) ) {
						if ( rscriptType.test( elem.type || "" ) ) {
							scripts.push( elem );
						}
					}
				}
			}
	
			return fragment;
		},
	
		cleanData: function( elems ) {
			var data, elem, type, key,
				special = jQuery.event.special,
				i = 0;
	
			for ( ; (elem = elems[ i ]) !== undefined; i++ ) {
				if ( jQuery.acceptData( elem ) ) {
					key = elem[ data_priv.expando ];
	
					if ( key && (data = data_priv.cache[ key ]) ) {
						if ( data.events ) {
							for ( type in data.events ) {
								if ( special[ type ] ) {
									jQuery.event.remove( elem, type );
	
								// This is a shortcut to avoid jQuery.event.remove's overhead
								} else {
									jQuery.removeEvent( elem, type, data.handle );
								}
							}
						}
						if ( data_priv.cache[ key ] ) {
							// Discard any remaining `private` data
							delete data_priv.cache[ key ];
						}
					}
				}
				// Discard any remaining `user` data
				delete data_user.cache[ elem[ data_user.expando ] ];
			}
		}
	});
	
	jQuery.fn.extend({
		text: function( value ) {
			return access( this, function( value ) {
				return value === undefined ?
					jQuery.text( this ) :
					this.empty().each(function() {
						if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
							this.textContent = value;
						}
					});
			}, null, value, arguments.length );
		},
	
		append: function() {
			return this.domManip( arguments, function( elem ) {
				if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
					var target = manipulationTarget( this, elem );
					target.appendChild( elem );
				}
			});
		},
	
		prepend: function() {
			return this.domManip( arguments, function( elem ) {
				if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
					var target = manipulationTarget( this, elem );
					target.insertBefore( elem, target.firstChild );
				}
			});
		},
	
		before: function() {
			return this.domManip( arguments, function( elem ) {
				if ( this.parentNode ) {
					this.parentNode.insertBefore( elem, this );
				}
			});
		},
	
		after: function() {
			return this.domManip( arguments, function( elem ) {
				if ( this.parentNode ) {
					this.parentNode.insertBefore( elem, this.nextSibling );
				}
			});
		},
	
		remove: function( selector, keepData /* Internal Use Only */ ) {
			var elem,
				elems = selector ? jQuery.filter( selector, this ) : this,
				i = 0;
	
			for ( ; (elem = elems[i]) != null; i++ ) {
				if ( !keepData && elem.nodeType === 1 ) {
					jQuery.cleanData( getAll( elem ) );
				}
	
				if ( elem.parentNode ) {
					if ( keepData && jQuery.contains( elem.ownerDocument, elem ) ) {
						setGlobalEval( getAll( elem, "script" ) );
					}
					elem.parentNode.removeChild( elem );
				}
			}
	
			return this;
		},
	
		empty: function() {
			var elem,
				i = 0;
	
			for ( ; (elem = this[i]) != null; i++ ) {
				if ( elem.nodeType === 1 ) {
	
					// Prevent memory leaks
					jQuery.cleanData( getAll( elem, false ) );
	
					// Remove any remaining nodes
					elem.textContent = "";
				}
			}
	
			return this;
		},
	
		clone: function( dataAndEvents, deepDataAndEvents ) {
			dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
			deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
	
			return this.map(function() {
				return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
			});
		},
	
		html: function( value ) {
			return access( this, function( value ) {
				var elem = this[ 0 ] || {},
					i = 0,
					l = this.length;
	
				if ( value === undefined && elem.nodeType === 1 ) {
					return elem.innerHTML;
				}
	
				// See if we can take a shortcut and just use innerHTML
				if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
					!wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {
	
					value = value.replace( rxhtmlTag, "<$1></$2>" );
	
					try {
						for ( ; i < l; i++ ) {
							elem = this[ i ] || {};
	
							// Remove element nodes and prevent memory leaks
							if ( elem.nodeType === 1 ) {
								jQuery.cleanData( getAll( elem, false ) );
								elem.innerHTML = value;
							}
						}
	
						elem = 0;
	
					// If using innerHTML throws an exception, use the fallback method
					} catch( e ) {}
				}
	
				if ( elem ) {
					this.empty().append( value );
				}
			}, null, value, arguments.length );
		},
	
		replaceWith: function() {
			var arg = arguments[ 0 ];
	
			// Make the changes, replacing each context element with the new content
			this.domManip( arguments, function( elem ) {
				arg = this.parentNode;
	
				jQuery.cleanData( getAll( this ) );
	
				if ( arg ) {
					arg.replaceChild( elem, this );
				}
			});
	
			// Force removal if there was no new content (e.g., from empty arguments)
			return arg && (arg.length || arg.nodeType) ? this : this.remove();
		},
	
		detach: function( selector ) {
			return this.remove( selector, true );
		},
	
		domManip: function( args, callback ) {
	
			// Flatten any nested arrays
			args = concat.apply( [], args );
	
			var fragment, first, scripts, hasScripts, node, doc,
				i = 0,
				l = this.length,
				set = this,
				iNoClone = l - 1,
				value = args[ 0 ],
				isFunction = jQuery.isFunction( value );
	
			// We can't cloneNode fragments that contain checked, in WebKit
			if ( isFunction ||
					( l > 1 && typeof value === "string" &&
						!support.checkClone && rchecked.test( value ) ) ) {
				return this.each(function( index ) {
					var self = set.eq( index );
					if ( isFunction ) {
						args[ 0 ] = value.call( this, index, self.html() );
					}
					self.domManip( args, callback );
				});
			}
	
			if ( l ) {
				fragment = jQuery.buildFragment( args, this[ 0 ].ownerDocument, false, this );
				first = fragment.firstChild;
	
				if ( fragment.childNodes.length === 1 ) {
					fragment = first;
				}
	
				if ( first ) {
					scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
					hasScripts = scripts.length;
	
					// Use the original fragment for the last item instead of the first because it can end up
					// being emptied incorrectly in certain situations (#8070).
					for ( ; i < l; i++ ) {
						node = fragment;
	
						if ( i !== iNoClone ) {
							node = jQuery.clone( node, true, true );
	
							// Keep references to cloned scripts for later restoration
							if ( hasScripts ) {
								// Support: QtWebKit
								// jQuery.merge because push.apply(_, arraylike) throws
								jQuery.merge( scripts, getAll( node, "script" ) );
							}
						}
	
						callback.call( this[ i ], node, i );
					}
	
					if ( hasScripts ) {
						doc = scripts[ scripts.length - 1 ].ownerDocument;
	
						// Reenable scripts
						jQuery.map( scripts, restoreScript );
	
						// Evaluate executable scripts on first document insertion
						for ( i = 0; i < hasScripts; i++ ) {
							node = scripts[ i ];
							if ( rscriptType.test( node.type || "" ) &&
								!data_priv.access( node, "globalEval" ) && jQuery.contains( doc, node ) ) {
	
								if ( node.src ) {
									// Optional AJAX dependency, but won't run scripts if not present
									if ( jQuery._evalUrl ) {
										jQuery._evalUrl( node.src );
									}
								} else {
									jQuery.globalEval( node.textContent.replace( rcleanScript, "" ) );
								}
							}
						}
					}
				}
			}
	
			return this;
		}
	});
	
	jQuery.each({
		appendTo: "append",
		prependTo: "prepend",
		insertBefore: "before",
		insertAfter: "after",
		replaceAll: "replaceWith"
	}, function( name, original ) {
		jQuery.fn[ name ] = function( selector ) {
			var elems,
				ret = [],
				insert = jQuery( selector ),
				last = insert.length - 1,
				i = 0;
	
			for ( ; i <= last; i++ ) {
				elems = i === last ? this : this.clone( true );
				jQuery( insert[ i ] )[ original ]( elems );
	
				// Support: QtWebKit
				// .get() because push.apply(_, arraylike) throws
				push.apply( ret, elems.get() );
			}
	
			return this.pushStack( ret );
		};
	});
	
	
	var iframe,
		elemdisplay = {};
	
	/**
	 * Retrieve the actual display of a element
	 * @param {String} name nodeName of the element
	 * @param {Object} doc Document object
	 */
	// Called only from within defaultDisplay
	function actualDisplay( name, doc ) {
		var style,
			elem = jQuery( doc.createElement( name ) ).appendTo( doc.body ),
	
			// getDefaultComputedStyle might be reliably used only on attached element
			display = window.getDefaultComputedStyle && ( style = window.getDefaultComputedStyle( elem[ 0 ] ) ) ?
	
				// Use of this method is a temporary fix (more like optimization) until something better comes along,
				// since it was removed from specification and supported only in FF
				style.display : jQuery.css( elem[ 0 ], "display" );
	
		// We don't have any data stored on the element,
		// so use "detach" method as fast way to get rid of the element
		elem.detach();
	
		return display;
	}
	
	/**
	 * Try to determine the default display value of an element
	 * @param {String} nodeName
	 */
	function defaultDisplay( nodeName ) {
		var doc = document,
			display = elemdisplay[ nodeName ];
	
		if ( !display ) {
			display = actualDisplay( nodeName, doc );
	
			// If the simple way fails, read from inside an iframe
			if ( display === "none" || !display ) {
	
				// Use the already-created iframe if possible
				iframe = (iframe || jQuery( "<iframe frameborder='0' width='0' height='0'/>" )).appendTo( doc.documentElement );
	
				// Always write a new HTML skeleton so Webkit and Firefox don't choke on reuse
				doc = iframe[ 0 ].contentDocument;
	
				// Support: IE
				doc.write();
				doc.close();
	
				display = actualDisplay( nodeName, doc );
				iframe.detach();
			}
	
			// Store the correct default display
			elemdisplay[ nodeName ] = display;
		}
	
		return display;
	}
	var rmargin = (/^margin/);
	
	var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );
	
	var getStyles = function( elem ) {
			// Support: IE<=11+, Firefox<=30+ (#15098, #14150)
			// IE throws on elements created in popups
			// FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
			if ( elem.ownerDocument.defaultView.opener ) {
				return elem.ownerDocument.defaultView.getComputedStyle( elem, null );
			}
	
			return window.getComputedStyle( elem, null );
		};
	
	
	
	function curCSS( elem, name, computed ) {
		var width, minWidth, maxWidth, ret,
			style = elem.style;
	
		computed = computed || getStyles( elem );
	
		// Support: IE9
		// getPropertyValue is only needed for .css('filter') (#12537)
		if ( computed ) {
			ret = computed.getPropertyValue( name ) || computed[ name ];
		}
	
		if ( computed ) {
	
			if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
				ret = jQuery.style( elem, name );
			}
	
			// Support: iOS < 6
			// A tribute to the "awesome hack by Dean Edwards"
			// iOS < 6 (at least) returns percentage for a larger set of values, but width seems to be reliably pixels
			// this is against the CSSOM draft spec: http://dev.w3.org/csswg/cssom/#resolved-values
			if ( rnumnonpx.test( ret ) && rmargin.test( name ) ) {
	
				// Remember the original values
				width = style.width;
				minWidth = style.minWidth;
				maxWidth = style.maxWidth;
	
				// Put in the new values to get a computed value out
				style.minWidth = style.maxWidth = style.width = ret;
				ret = computed.width;
	
				// Revert the changed values
				style.width = width;
				style.minWidth = minWidth;
				style.maxWidth = maxWidth;
			}
		}
	
		return ret !== undefined ?
			// Support: IE
			// IE returns zIndex value as an integer.
			ret + "" :
			ret;
	}
	
	
	function addGetHookIf( conditionFn, hookFn ) {
		// Define the hook, we'll check on the first run if it's really needed.
		return {
			get: function() {
				if ( conditionFn() ) {
					// Hook not needed (or it's not possible to use it due
					// to missing dependency), remove it.
					delete this.get;
					return;
				}
	
				// Hook needed; redefine it so that the support test is not executed again.
				return (this.get = hookFn).apply( this, arguments );
			}
		};
	}
	
	
	(function() {
		var pixelPositionVal, boxSizingReliableVal,
			docElem = document.documentElement,
			container = document.createElement( "div" ),
			div = document.createElement( "div" );
	
		if ( !div.style ) {
			return;
		}
	
		// Support: IE9-11+
		// Style of cloned element affects source element cloned (#8908)
		div.style.backgroundClip = "content-box";
		div.cloneNode( true ).style.backgroundClip = "";
		support.clearCloneStyle = div.style.backgroundClip === "content-box";
	
		container.style.cssText = "border:0;width:0;height:0;top:0;left:-9999px;margin-top:1px;" +
			"position:absolute";
		container.appendChild( div );
	
		// Executing both pixelPosition & boxSizingReliable tests require only one layout
		// so they're executed at the same time to save the second computation.
		function computePixelPositionAndBoxSizingReliable() {
			div.style.cssText =
				// Support: Firefox<29, Android 2.3
				// Vendor-prefix box-sizing
				"-webkit-box-sizing:border-box;-moz-box-sizing:border-box;" +
				"box-sizing:border-box;display:block;margin-top:1%;top:1%;" +
				"border:1px;padding:1px;width:4px;position:absolute";
			div.innerHTML = "";
			docElem.appendChild( container );
	
			var divStyle = window.getComputedStyle( div, null );
			pixelPositionVal = divStyle.top !== "1%";
			boxSizingReliableVal = divStyle.width === "4px";
	
			docElem.removeChild( container );
		}
	
		// Support: node.js jsdom
		// Don't assume that getComputedStyle is a property of the global object
		if ( window.getComputedStyle ) {
			jQuery.extend( support, {
				pixelPosition: function() {
	
					// This test is executed only once but we still do memoizing
					// since we can use the boxSizingReliable pre-computing.
					// No need to check if the test was already performed, though.
					computePixelPositionAndBoxSizingReliable();
					return pixelPositionVal;
				},
				boxSizingReliable: function() {
					if ( boxSizingReliableVal == null ) {
						computePixelPositionAndBoxSizingReliable();
					}
					return boxSizingReliableVal;
				},
				reliableMarginRight: function() {
	
					// Support: Android 2.3
					// Check if div with explicit width and no margin-right incorrectly
					// gets computed margin-right based on width of container. (#3333)
					// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
					// This support function is only executed once so no memoizing is needed.
					var ret,
						marginDiv = div.appendChild( document.createElement( "div" ) );
	
					// Reset CSS: box-sizing; display; margin; border; padding
					marginDiv.style.cssText = div.style.cssText =
						// Support: Firefox<29, Android 2.3
						// Vendor-prefix box-sizing
						"-webkit-box-sizing:content-box;-moz-box-sizing:content-box;" +
						"box-sizing:content-box;display:block;margin:0;border:0;padding:0";
					marginDiv.style.marginRight = marginDiv.style.width = "0";
					div.style.width = "1px";
					docElem.appendChild( container );
	
					ret = !parseFloat( window.getComputedStyle( marginDiv, null ).marginRight );
	
					docElem.removeChild( container );
					div.removeChild( marginDiv );
	
					return ret;
				}
			});
		}
	})();
	
	
	// A method for quickly swapping in/out CSS properties to get correct calculations.
	jQuery.swap = function( elem, options, callback, args ) {
		var ret, name,
			old = {};
	
		// Remember the old values, and insert the new ones
		for ( name in options ) {
			old[ name ] = elem.style[ name ];
			elem.style[ name ] = options[ name ];
		}
	
		ret = callback.apply( elem, args || [] );
	
		// Revert the old values
		for ( name in options ) {
			elem.style[ name ] = old[ name ];
		}
	
		return ret;
	};
	
	
	var
		// Swappable if display is none or starts with table except "table", "table-cell", or "table-caption"
		// See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
		rdisplayswap = /^(none|table(?!-c[ea]).+)/,
		rnumsplit = new RegExp( "^(" + pnum + ")(.*)$", "i" ),
		rrelNum = new RegExp( "^([+-])=(" + pnum + ")", "i" ),
	
		cssShow = { position: "absolute", visibility: "hidden", display: "block" },
		cssNormalTransform = {
			letterSpacing: "0",
			fontWeight: "400"
		},
	
		cssPrefixes = [ "Webkit", "O", "Moz", "ms" ];
	
	// Return a css property mapped to a potentially vendor prefixed property
	function vendorPropName( style, name ) {
	
		// Shortcut for names that are not vendor prefixed
		if ( name in style ) {
			return name;
		}
	
		// Check for vendor prefixed names
		var capName = name[0].toUpperCase() + name.slice(1),
			origName = name,
			i = cssPrefixes.length;
	
		while ( i-- ) {
			name = cssPrefixes[ i ] + capName;
			if ( name in style ) {
				return name;
			}
		}
	
		return origName;
	}
	
	function setPositiveNumber( elem, value, subtract ) {
		var matches = rnumsplit.exec( value );
		return matches ?
			// Guard against undefined "subtract", e.g., when used as in cssHooks
			Math.max( 0, matches[ 1 ] - ( subtract || 0 ) ) + ( matches[ 2 ] || "px" ) :
			value;
	}
	
	function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
		var i = extra === ( isBorderBox ? "border" : "content" ) ?
			// If we already have the right measurement, avoid augmentation
			4 :
			// Otherwise initialize for horizontal or vertical properties
			name === "width" ? 1 : 0,
	
			val = 0;
	
		for ( ; i < 4; i += 2 ) {
			// Both box models exclude margin, so add it if we want it
			if ( extra === "margin" ) {
				val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
			}
	
			if ( isBorderBox ) {
				// border-box includes padding, so remove it if we want content
				if ( extra === "content" ) {
					val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
				}
	
				// At this point, extra isn't border nor margin, so remove border
				if ( extra !== "margin" ) {
					val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
				}
			} else {
				// At this point, extra isn't content, so add padding
				val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
	
				// At this point, extra isn't content nor padding, so add border
				if ( extra !== "padding" ) {
					val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
				}
			}
		}
	
		return val;
	}
	
	function getWidthOrHeight( elem, name, extra ) {
	
		// Start with offset property, which is equivalent to the border-box value
		var valueIsBorderBox = true,
			val = name === "width" ? elem.offsetWidth : elem.offsetHeight,
			styles = getStyles( elem ),
			isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
	
		// Some non-html elements return undefined for offsetWidth, so check for null/undefined
		// svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285
		// MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668
		if ( val <= 0 || val == null ) {
			// Fall back to computed then uncomputed css if necessary
			val = curCSS( elem, name, styles );
			if ( val < 0 || val == null ) {
				val = elem.style[ name ];
			}
	
			// Computed unit is not pixels. Stop here and return.
			if ( rnumnonpx.test(val) ) {
				return val;
			}
	
			// Check for style in case a browser which returns unreliable values
			// for getComputedStyle silently falls back to the reliable elem.style
			valueIsBorderBox = isBorderBox &&
				( support.boxSizingReliable() || val === elem.style[ name ] );
	
			// Normalize "", auto, and prepare for extra
			val = parseFloat( val ) || 0;
		}
	
		// Use the active box-sizing model to add/subtract irrelevant styles
		return ( val +
			augmentWidthOrHeight(
				elem,
				name,
				extra || ( isBorderBox ? "border" : "content" ),
				valueIsBorderBox,
				styles
			)
		) + "px";
	}
	
	function showHide( elements, show ) {
		var display, elem, hidden,
			values = [],
			index = 0,
			length = elements.length;
	
		for ( ; index < length; index++ ) {
			elem = elements[ index ];
			if ( !elem.style ) {
				continue;
			}
	
			values[ index ] = data_priv.get( elem, "olddisplay" );
			display = elem.style.display;
			if ( show ) {
				// Reset the inline display of this element to learn if it is
				// being hidden by cascaded rules or not
				if ( !values[ index ] && display === "none" ) {
					elem.style.display = "";
				}
	
				// Set elements which have been overridden with display: none
				// in a stylesheet to whatever the default browser style is
				// for such an element
				if ( elem.style.display === "" && isHidden( elem ) ) {
					values[ index ] = data_priv.access( elem, "olddisplay", defaultDisplay(elem.nodeName) );
				}
			} else {
				hidden = isHidden( elem );
	
				if ( display !== "none" || !hidden ) {
					data_priv.set( elem, "olddisplay", hidden ? display : jQuery.css( elem, "display" ) );
				}
			}
		}
	
		// Set the display of most of the elements in a second loop
		// to avoid the constant reflow
		for ( index = 0; index < length; index++ ) {
			elem = elements[ index ];
			if ( !elem.style ) {
				continue;
			}
			if ( !show || elem.style.display === "none" || elem.style.display === "" ) {
				elem.style.display = show ? values[ index ] || "" : "none";
			}
		}
	
		return elements;
	}
	
	jQuery.extend({
	
		// Add in style property hooks for overriding the default
		// behavior of getting and setting a style property
		cssHooks: {
			opacity: {
				get: function( elem, computed ) {
					if ( computed ) {
	
						// We should always get a number back from opacity
						var ret = curCSS( elem, "opacity" );
						return ret === "" ? "1" : ret;
					}
				}
			}
		},
	
		// Don't automatically add "px" to these possibly-unitless properties
		cssNumber: {
			"columnCount": true,
			"fillOpacity": true,
			"flexGrow": true,
			"flexShrink": true,
			"fontWeight": true,
			"lineHeight": true,
			"opacity": true,
			"order": true,
			"orphans": true,
			"widows": true,
			"zIndex": true,
			"zoom": true
		},
	
		// Add in properties whose names you wish to fix before
		// setting or getting the value
		cssProps: {
			"float": "cssFloat"
		},
	
		// Get and set the style property on a DOM Node
		style: function( elem, name, value, extra ) {
	
			// Don't set styles on text and comment nodes
			if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
				return;
			}
	
			// Make sure that we're working with the right name
			var ret, type, hooks,
				origName = jQuery.camelCase( name ),
				style = elem.style;
	
			name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( style, origName ) );
	
			// Gets hook for the prefixed version, then unprefixed version
			hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
	
			// Check if we're setting a value
			if ( value !== undefined ) {
				type = typeof value;
	
				// Convert "+=" or "-=" to relative numbers (#7345)
				if ( type === "string" && (ret = rrelNum.exec( value )) ) {
					value = ( ret[1] + 1 ) * ret[2] + parseFloat( jQuery.css( elem, name ) );
					// Fixes bug #9237
					type = "number";
				}
	
				// Make sure that null and NaN values aren't set (#7116)
				if ( value == null || value !== value ) {
					return;
				}
	
				// If a number, add 'px' to the (except for certain CSS properties)
				if ( type === "number" && !jQuery.cssNumber[ origName ] ) {
					value += "px";
				}
	
				// Support: IE9-11+
				// background-* props affect original clone's values
				if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
					style[ name ] = "inherit";
				}
	
				// If a hook was provided, use that value, otherwise just set the specified value
				if ( !hooks || !("set" in hooks) || (value = hooks.set( elem, value, extra )) !== undefined ) {
					style[ name ] = value;
				}
	
			} else {
				// If a hook was provided get the non-computed value from there
				if ( hooks && "get" in hooks && (ret = hooks.get( elem, false, extra )) !== undefined ) {
					return ret;
				}
	
				// Otherwise just get the value from the style object
				return style[ name ];
			}
		},
	
		css: function( elem, name, extra, styles ) {
			var val, num, hooks,
				origName = jQuery.camelCase( name );
	
			// Make sure that we're working with the right name
			name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( elem.style, origName ) );
	
			// Try prefixed name followed by the unprefixed name
			hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
	
			// If a hook was provided get the computed value from there
			if ( hooks && "get" in hooks ) {
				val = hooks.get( elem, true, extra );
			}
	
			// Otherwise, if a way to get the computed value exists, use that
			if ( val === undefined ) {
				val = curCSS( elem, name, styles );
			}
	
			// Convert "normal" to computed value
			if ( val === "normal" && name in cssNormalTransform ) {
				val = cssNormalTransform[ name ];
			}
	
			// Make numeric if forced or a qualifier was provided and val looks numeric
			if ( extra === "" || extra ) {
				num = parseFloat( val );
				return extra === true || jQuery.isNumeric( num ) ? num || 0 : val;
			}
			return val;
		}
	});
	
	jQuery.each([ "height", "width" ], function( i, name ) {
		jQuery.cssHooks[ name ] = {
			get: function( elem, computed, extra ) {
				if ( computed ) {
	
					// Certain elements can have dimension info if we invisibly show them
					// but it must have a current display style that would benefit
					return rdisplayswap.test( jQuery.css( elem, "display" ) ) && elem.offsetWidth === 0 ?
						jQuery.swap( elem, cssShow, function() {
							return getWidthOrHeight( elem, name, extra );
						}) :
						getWidthOrHeight( elem, name, extra );
				}
			},
	
			set: function( elem, value, extra ) {
				var styles = extra && getStyles( elem );
				return setPositiveNumber( elem, value, extra ?
					augmentWidthOrHeight(
						elem,
						name,
						extra,
						jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
						styles
					) : 0
				);
			}
		};
	});
	
	// Support: Android 2.3
	jQuery.cssHooks.marginRight = addGetHookIf( support.reliableMarginRight,
		function( elem, computed ) {
			if ( computed ) {
				return jQuery.swap( elem, { "display": "inline-block" },
					curCSS, [ elem, "marginRight" ] );
			}
		}
	);
	
	// These hooks are used by animate to expand properties
	jQuery.each({
		margin: "",
		padding: "",
		border: "Width"
	}, function( prefix, suffix ) {
		jQuery.cssHooks[ prefix + suffix ] = {
			expand: function( value ) {
				var i = 0,
					expanded = {},
	
					// Assumes a single number if not a string
					parts = typeof value === "string" ? value.split(" ") : [ value ];
	
				for ( ; i < 4; i++ ) {
					expanded[ prefix + cssExpand[ i ] + suffix ] =
						parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
				}
	
				return expanded;
			}
		};
	
		if ( !rmargin.test( prefix ) ) {
			jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
		}
	});
	
	jQuery.fn.extend({
		css: function( name, value ) {
			return access( this, function( elem, name, value ) {
				var styles, len,
					map = {},
					i = 0;
	
				if ( jQuery.isArray( name ) ) {
					styles = getStyles( elem );
					len = name.length;
	
					for ( ; i < len; i++ ) {
						map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
					}
	
					return map;
				}
	
				return value !== undefined ?
					jQuery.style( elem, name, value ) :
					jQuery.css( elem, name );
			}, name, value, arguments.length > 1 );
		},
		show: function() {
			return showHide( this, true );
		},
		hide: function() {
			return showHide( this );
		},
		toggle: function( state ) {
			if ( typeof state === "boolean" ) {
				return state ? this.show() : this.hide();
			}
	
			return this.each(function() {
				if ( isHidden( this ) ) {
					jQuery( this ).show();
				} else {
					jQuery( this ).hide();
				}
			});
		}
	});
	
	
	function Tween( elem, options, prop, end, easing ) {
		return new Tween.prototype.init( elem, options, prop, end, easing );
	}
	jQuery.Tween = Tween;
	
	Tween.prototype = {
		constructor: Tween,
		init: function( elem, options, prop, end, easing, unit ) {
			this.elem = elem;
			this.prop = prop;
			this.easing = easing || "swing";
			this.options = options;
			this.start = this.now = this.cur();
			this.end = end;
			this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
		},
		cur: function() {
			var hooks = Tween.propHooks[ this.prop ];
	
			return hooks && hooks.get ?
				hooks.get( this ) :
				Tween.propHooks._default.get( this );
		},
		run: function( percent ) {
			var eased,
				hooks = Tween.propHooks[ this.prop ];
	
			if ( this.options.duration ) {
				this.pos = eased = jQuery.easing[ this.easing ](
					percent, this.options.duration * percent, 0, 1, this.options.duration
				);
			} else {
				this.pos = eased = percent;
			}
			this.now = ( this.end - this.start ) * eased + this.start;
	
			if ( this.options.step ) {
				this.options.step.call( this.elem, this.now, this );
			}
	
			if ( hooks && hooks.set ) {
				hooks.set( this );
			} else {
				Tween.propHooks._default.set( this );
			}
			return this;
		}
	};
	
	Tween.prototype.init.prototype = Tween.prototype;
	
	Tween.propHooks = {
		_default: {
			get: function( tween ) {
				var result;
	
				if ( tween.elem[ tween.prop ] != null &&
					(!tween.elem.style || tween.elem.style[ tween.prop ] == null) ) {
					return tween.elem[ tween.prop ];
				}
	
				// Passing an empty string as a 3rd parameter to .css will automatically
				// attempt a parseFloat and fallback to a string if the parse fails.
				// Simple values such as "10px" are parsed to Float;
				// complex values such as "rotate(1rad)" are returned as-is.
				result = jQuery.css( tween.elem, tween.prop, "" );
				// Empty strings, null, undefined and "auto" are converted to 0.
				return !result || result === "auto" ? 0 : result;
			},
			set: function( tween ) {
				// Use step hook for back compat.
				// Use cssHook if its there.
				// Use .style if available and use plain properties where available.
				if ( jQuery.fx.step[ tween.prop ] ) {
					jQuery.fx.step[ tween.prop ]( tween );
				} else if ( tween.elem.style && ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null || jQuery.cssHooks[ tween.prop ] ) ) {
					jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
				} else {
					tween.elem[ tween.prop ] = tween.now;
				}
			}
		}
	};
	
	// Support: IE9
	// Panic based approach to setting things on disconnected nodes
	Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
		set: function( tween ) {
			if ( tween.elem.nodeType && tween.elem.parentNode ) {
				tween.elem[ tween.prop ] = tween.now;
			}
		}
	};
	
	jQuery.easing = {
		linear: function( p ) {
			return p;
		},
		swing: function( p ) {
			return 0.5 - Math.cos( p * Math.PI ) / 2;
		}
	};
	
	jQuery.fx = Tween.prototype.init;
	
	// Back Compat <1.8 extension point
	jQuery.fx.step = {};
	
	
	
	
	var
		fxNow, timerId,
		rfxtypes = /^(?:toggle|show|hide)$/,
		rfxnum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" ),
		rrun = /queueHooks$/,
		animationPrefilters = [ defaultPrefilter ],
		tweeners = {
			"*": [ function( prop, value ) {
				var tween = this.createTween( prop, value ),
					target = tween.cur(),
					parts = rfxnum.exec( value ),
					unit = parts && parts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),
	
					// Starting value computation is required for potential unit mismatches
					start = ( jQuery.cssNumber[ prop ] || unit !== "px" && +target ) &&
						rfxnum.exec( jQuery.css( tween.elem, prop ) ),
					scale = 1,
					maxIterations = 20;
	
				if ( start && start[ 3 ] !== unit ) {
					// Trust units reported by jQuery.css
					unit = unit || start[ 3 ];
	
					// Make sure we update the tween properties later on
					parts = parts || [];
	
					// Iteratively approximate from a nonzero starting point
					start = +target || 1;
	
					do {
						// If previous iteration zeroed out, double until we get *something*.
						// Use string for doubling so we don't accidentally see scale as unchanged below
						scale = scale || ".5";
	
						// Adjust and apply
						start = start / scale;
						jQuery.style( tween.elem, prop, start + unit );
	
					// Update scale, tolerating zero or NaN from tween.cur(),
					// break the loop if scale is unchanged or perfect, or if we've just had enough
					} while ( scale !== (scale = tween.cur() / target) && scale !== 1 && --maxIterations );
				}
	
				// Update tween properties
				if ( parts ) {
					start = tween.start = +start || +target || 0;
					tween.unit = unit;
					// If a +=/-= token was provided, we're doing a relative animation
					tween.end = parts[ 1 ] ?
						start + ( parts[ 1 ] + 1 ) * parts[ 2 ] :
						+parts[ 2 ];
				}
	
				return tween;
			} ]
		};
	
	// Animations created synchronously will run synchronously
	function createFxNow() {
		setTimeout(function() {
			fxNow = undefined;
		});
		return ( fxNow = jQuery.now() );
	}
	
	// Generate parameters to create a standard animation
	function genFx( type, includeWidth ) {
		var which,
			i = 0,
			attrs = { height: type };
	
		// If we include width, step value is 1 to do all cssExpand values,
		// otherwise step value is 2 to skip over Left and Right
		includeWidth = includeWidth ? 1 : 0;
		for ( ; i < 4 ; i += 2 - includeWidth ) {
			which = cssExpand[ i ];
			attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
		}
	
		if ( includeWidth ) {
			attrs.opacity = attrs.width = type;
		}
	
		return attrs;
	}
	
	function createTween( value, prop, animation ) {
		var tween,
			collection = ( tweeners[ prop ] || [] ).concat( tweeners[ "*" ] ),
			index = 0,
			length = collection.length;
		for ( ; index < length; index++ ) {
			if ( (tween = collection[ index ].call( animation, prop, value )) ) {
	
				// We're done with this property
				return tween;
			}
		}
	}
	
	function defaultPrefilter( elem, props, opts ) {
		/* jshint validthis: true */
		var prop, value, toggle, tween, hooks, oldfire, display, checkDisplay,
			anim = this,
			orig = {},
			style = elem.style,
			hidden = elem.nodeType && isHidden( elem ),
			dataShow = data_priv.get( elem, "fxshow" );
	
		// Handle queue: false promises
		if ( !opts.queue ) {
			hooks = jQuery._queueHooks( elem, "fx" );
			if ( hooks.unqueued == null ) {
				hooks.unqueued = 0;
				oldfire = hooks.empty.fire;
				hooks.empty.fire = function() {
					if ( !hooks.unqueued ) {
						oldfire();
					}
				};
			}
			hooks.unqueued++;
	
			anim.always(function() {
				// Ensure the complete handler is called before this completes
				anim.always(function() {
					hooks.unqueued--;
					if ( !jQuery.queue( elem, "fx" ).length ) {
						hooks.empty.fire();
					}
				});
			});
		}
	
		// Height/width overflow pass
		if ( elem.nodeType === 1 && ( "height" in props || "width" in props ) ) {
			// Make sure that nothing sneaks out
			// Record all 3 overflow attributes because IE9-10 do not
			// change the overflow attribute when overflowX and
			// overflowY are set to the same value
			opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
	
			// Set display property to inline-block for height/width
			// animations on inline elements that are having width/height animated
			display = jQuery.css( elem, "display" );
	
			// Test default display if display is currently "none"
			checkDisplay = display === "none" ?
				data_priv.get( elem, "olddisplay" ) || defaultDisplay( elem.nodeName ) : display;
	
			if ( checkDisplay === "inline" && jQuery.css( elem, "float" ) === "none" ) {
				style.display = "inline-block";
			}
		}
	
		if ( opts.overflow ) {
			style.overflow = "hidden";
			anim.always(function() {
				style.overflow = opts.overflow[ 0 ];
				style.overflowX = opts.overflow[ 1 ];
				style.overflowY = opts.overflow[ 2 ];
			});
		}
	
		// show/hide pass
		for ( prop in props ) {
			value = props[ prop ];
			if ( rfxtypes.exec( value ) ) {
				delete props[ prop ];
				toggle = toggle || value === "toggle";
				if ( value === ( hidden ? "hide" : "show" ) ) {
	
					// If there is dataShow left over from a stopped hide or show and we are going to proceed with show, we should pretend to be hidden
					if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
						hidden = true;
					} else {
						continue;
					}
				}
				orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
	
			// Any non-fx value stops us from restoring the original display value
			} else {
				display = undefined;
			}
		}
	
		if ( !jQuery.isEmptyObject( orig ) ) {
			if ( dataShow ) {
				if ( "hidden" in dataShow ) {
					hidden = dataShow.hidden;
				}
			} else {
				dataShow = data_priv.access( elem, "fxshow", {} );
			}
	
			// Store state if its toggle - enables .stop().toggle() to "reverse"
			if ( toggle ) {
				dataShow.hidden = !hidden;
			}
			if ( hidden ) {
				jQuery( elem ).show();
			} else {
				anim.done(function() {
					jQuery( elem ).hide();
				});
			}
			anim.done(function() {
				var prop;
	
				data_priv.remove( elem, "fxshow" );
				for ( prop in orig ) {
					jQuery.style( elem, prop, orig[ prop ] );
				}
			});
			for ( prop in orig ) {
				tween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
	
				if ( !( prop in dataShow ) ) {
					dataShow[ prop ] = tween.start;
					if ( hidden ) {
						tween.end = tween.start;
						tween.start = prop === "width" || prop === "height" ? 1 : 0;
					}
				}
			}
	
		// If this is a noop like .hide().hide(), restore an overwritten display value
		} else if ( (display === "none" ? defaultDisplay( elem.nodeName ) : display) === "inline" ) {
			style.display = display;
		}
	}
	
	function propFilter( props, specialEasing ) {
		var index, name, easing, value, hooks;
	
		// camelCase, specialEasing and expand cssHook pass
		for ( index in props ) {
			name = jQuery.camelCase( index );
			easing = specialEasing[ name ];
			value = props[ index ];
			if ( jQuery.isArray( value ) ) {
				easing = value[ 1 ];
				value = props[ index ] = value[ 0 ];
			}
	
			if ( index !== name ) {
				props[ name ] = value;
				delete props[ index ];
			}
	
			hooks = jQuery.cssHooks[ name ];
			if ( hooks && "expand" in hooks ) {
				value = hooks.expand( value );
				delete props[ name ];
	
				// Not quite $.extend, this won't overwrite existing keys.
				// Reusing 'index' because we have the correct "name"
				for ( index in value ) {
					if ( !( index in props ) ) {
						props[ index ] = value[ index ];
						specialEasing[ index ] = easing;
					}
				}
			} else {
				specialEasing[ name ] = easing;
			}
		}
	}
	
	function Animation( elem, properties, options ) {
		var result,
			stopped,
			index = 0,
			length = animationPrefilters.length,
			deferred = jQuery.Deferred().always( function() {
				// Don't match elem in the :animated selector
				delete tick.elem;
			}),
			tick = function() {
				if ( stopped ) {
					return false;
				}
				var currentTime = fxNow || createFxNow(),
					remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
					// Support: Android 2.3
					// Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
					temp = remaining / animation.duration || 0,
					percent = 1 - temp,
					index = 0,
					length = animation.tweens.length;
	
				for ( ; index < length ; index++ ) {
					animation.tweens[ index ].run( percent );
				}
	
				deferred.notifyWith( elem, [ animation, percent, remaining ]);
	
				if ( percent < 1 && length ) {
					return remaining;
				} else {
					deferred.resolveWith( elem, [ animation ] );
					return false;
				}
			},
			animation = deferred.promise({
				elem: elem,
				props: jQuery.extend( {}, properties ),
				opts: jQuery.extend( true, { specialEasing: {} }, options ),
				originalProperties: properties,
				originalOptions: options,
				startTime: fxNow || createFxNow(),
				duration: options.duration,
				tweens: [],
				createTween: function( prop, end ) {
					var tween = jQuery.Tween( elem, animation.opts, prop, end,
							animation.opts.specialEasing[ prop ] || animation.opts.easing );
					animation.tweens.push( tween );
					return tween;
				},
				stop: function( gotoEnd ) {
					var index = 0,
						// If we are going to the end, we want to run all the tweens
						// otherwise we skip this part
						length = gotoEnd ? animation.tweens.length : 0;
					if ( stopped ) {
						return this;
					}
					stopped = true;
					for ( ; index < length ; index++ ) {
						animation.tweens[ index ].run( 1 );
					}
	
					// Resolve when we played the last frame; otherwise, reject
					if ( gotoEnd ) {
						deferred.resolveWith( elem, [ animation, gotoEnd ] );
					} else {
						deferred.rejectWith( elem, [ animation, gotoEnd ] );
					}
					return this;
				}
			}),
			props = animation.props;
	
		propFilter( props, animation.opts.specialEasing );
	
		for ( ; index < length ; index++ ) {
			result = animationPrefilters[ index ].call( animation, elem, props, animation.opts );
			if ( result ) {
				return result;
			}
		}
	
		jQuery.map( props, createTween, animation );
	
		if ( jQuery.isFunction( animation.opts.start ) ) {
			animation.opts.start.call( elem, animation );
		}
	
		jQuery.fx.timer(
			jQuery.extend( tick, {
				elem: elem,
				anim: animation,
				queue: animation.opts.queue
			})
		);
	
		// attach callbacks from options
		return animation.progress( animation.opts.progress )
			.done( animation.opts.done, animation.opts.complete )
			.fail( animation.opts.fail )
			.always( animation.opts.always );
	}
	
	jQuery.Animation = jQuery.extend( Animation, {
	
		tweener: function( props, callback ) {
			if ( jQuery.isFunction( props ) ) {
				callback = props;
				props = [ "*" ];
			} else {
				props = props.split(" ");
			}
	
			var prop,
				index = 0,
				length = props.length;
	
			for ( ; index < length ; index++ ) {
				prop = props[ index ];
				tweeners[ prop ] = tweeners[ prop ] || [];
				tweeners[ prop ].unshift( callback );
			}
		},
	
		prefilter: function( callback, prepend ) {
			if ( prepend ) {
				animationPrefilters.unshift( callback );
			} else {
				animationPrefilters.push( callback );
			}
		}
	});
	
	jQuery.speed = function( speed, easing, fn ) {
		var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
			complete: fn || !fn && easing ||
				jQuery.isFunction( speed ) && speed,
			duration: speed,
			easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
		};
	
		opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :
			opt.duration in jQuery.fx.speeds ? jQuery.fx.speeds[ opt.duration ] : jQuery.fx.speeds._default;
	
		// Normalize opt.queue - true/undefined/null -> "fx"
		if ( opt.queue == null || opt.queue === true ) {
			opt.queue = "fx";
		}
	
		// Queueing
		opt.old = opt.complete;
	
		opt.complete = function() {
			if ( jQuery.isFunction( opt.old ) ) {
				opt.old.call( this );
			}
	
			if ( opt.queue ) {
				jQuery.dequeue( this, opt.queue );
			}
		};
	
		return opt;
	};
	
	jQuery.fn.extend({
		fadeTo: function( speed, to, easing, callback ) {
	
			// Show any hidden elements after setting opacity to 0
			return this.filter( isHidden ).css( "opacity", 0 ).show()
	
				// Animate to the value specified
				.end().animate({ opacity: to }, speed, easing, callback );
		},
		animate: function( prop, speed, easing, callback ) {
			var empty = jQuery.isEmptyObject( prop ),
				optall = jQuery.speed( speed, easing, callback ),
				doAnimation = function() {
					// Operate on a copy of prop so per-property easing won't be lost
					var anim = Animation( this, jQuery.extend( {}, prop ), optall );
	
					// Empty animations, or finishing resolves immediately
					if ( empty || data_priv.get( this, "finish" ) ) {
						anim.stop( true );
					}
				};
				doAnimation.finish = doAnimation;
	
			return empty || optall.queue === false ?
				this.each( doAnimation ) :
				this.queue( optall.queue, doAnimation );
		},
		stop: function( type, clearQueue, gotoEnd ) {
			var stopQueue = function( hooks ) {
				var stop = hooks.stop;
				delete hooks.stop;
				stop( gotoEnd );
			};
	
			if ( typeof type !== "string" ) {
				gotoEnd = clearQueue;
				clearQueue = type;
				type = undefined;
			}
			if ( clearQueue && type !== false ) {
				this.queue( type || "fx", [] );
			}
	
			return this.each(function() {
				var dequeue = true,
					index = type != null && type + "queueHooks",
					timers = jQuery.timers,
					data = data_priv.get( this );
	
				if ( index ) {
					if ( data[ index ] && data[ index ].stop ) {
						stopQueue( data[ index ] );
					}
				} else {
					for ( index in data ) {
						if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
							stopQueue( data[ index ] );
						}
					}
				}
	
				for ( index = timers.length; index--; ) {
					if ( timers[ index ].elem === this && (type == null || timers[ index ].queue === type) ) {
						timers[ index ].anim.stop( gotoEnd );
						dequeue = false;
						timers.splice( index, 1 );
					}
				}
	
				// Start the next in the queue if the last step wasn't forced.
				// Timers currently will call their complete callbacks, which
				// will dequeue but only if they were gotoEnd.
				if ( dequeue || !gotoEnd ) {
					jQuery.dequeue( this, type );
				}
			});
		},
		finish: function( type ) {
			if ( type !== false ) {
				type = type || "fx";
			}
			return this.each(function() {
				var index,
					data = data_priv.get( this ),
					queue = data[ type + "queue" ],
					hooks = data[ type + "queueHooks" ],
					timers = jQuery.timers,
					length = queue ? queue.length : 0;
	
				// Enable finishing flag on private data
				data.finish = true;
	
				// Empty the queue first
				jQuery.queue( this, type, [] );
	
				if ( hooks && hooks.stop ) {
					hooks.stop.call( this, true );
				}
	
				// Look for any active animations, and finish them
				for ( index = timers.length; index--; ) {
					if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
						timers[ index ].anim.stop( true );
						timers.splice( index, 1 );
					}
				}
	
				// Look for any animations in the old queue and finish them
				for ( index = 0; index < length; index++ ) {
					if ( queue[ index ] && queue[ index ].finish ) {
						queue[ index ].finish.call( this );
					}
				}
	
				// Turn off finishing flag
				delete data.finish;
			});
		}
	});
	
	jQuery.each([ "toggle", "show", "hide" ], function( i, name ) {
		var cssFn = jQuery.fn[ name ];
		jQuery.fn[ name ] = function( speed, easing, callback ) {
			return speed == null || typeof speed === "boolean" ?
				cssFn.apply( this, arguments ) :
				this.animate( genFx( name, true ), speed, easing, callback );
		};
	});
	
	// Generate shortcuts for custom animations
	jQuery.each({
		slideDown: genFx("show"),
		slideUp: genFx("hide"),
		slideToggle: genFx("toggle"),
		fadeIn: { opacity: "show" },
		fadeOut: { opacity: "hide" },
		fadeToggle: { opacity: "toggle" }
	}, function( name, props ) {
		jQuery.fn[ name ] = function( speed, easing, callback ) {
			return this.animate( props, speed, easing, callback );
		};
	});
	
	jQuery.timers = [];
	jQuery.fx.tick = function() {
		var timer,
			i = 0,
			timers = jQuery.timers;
	
		fxNow = jQuery.now();
	
		for ( ; i < timers.length; i++ ) {
			timer = timers[ i ];
			// Checks the timer has not already been removed
			if ( !timer() && timers[ i ] === timer ) {
				timers.splice( i--, 1 );
			}
		}
	
		if ( !timers.length ) {
			jQuery.fx.stop();
		}
		fxNow = undefined;
	};
	
	jQuery.fx.timer = function( timer ) {
		jQuery.timers.push( timer );
		if ( timer() ) {
			jQuery.fx.start();
		} else {
			jQuery.timers.pop();
		}
	};
	
	jQuery.fx.interval = 13;
	
	jQuery.fx.start = function() {
		if ( !timerId ) {
			timerId = setInterval( jQuery.fx.tick, jQuery.fx.interval );
		}
	};
	
	jQuery.fx.stop = function() {
		clearInterval( timerId );
		timerId = null;
	};
	
	jQuery.fx.speeds = {
		slow: 600,
		fast: 200,
		// Default speed
		_default: 400
	};
	
	
	// Based off of the plugin by Clint Helfers, with permission.
	// http://blindsignals.com/index.php/2009/07/jquery-delay/
	jQuery.fn.delay = function( time, type ) {
		time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
		type = type || "fx";
	
		return this.queue( type, function( next, hooks ) {
			var timeout = setTimeout( next, time );
			hooks.stop = function() {
				clearTimeout( timeout );
			};
		});
	};
	
	
	(function() {
		var input = document.createElement( "input" ),
			select = document.createElement( "select" ),
			opt = select.appendChild( document.createElement( "option" ) );
	
		input.type = "checkbox";
	
		// Support: iOS<=5.1, Android<=4.2+
		// Default value for a checkbox should be "on"
		support.checkOn = input.value !== "";
	
		// Support: IE<=11+
		// Must access selectedIndex to make default options select
		support.optSelected = opt.selected;
	
		// Support: Android<=2.3
		// Options inside disabled selects are incorrectly marked as disabled
		select.disabled = true;
		support.optDisabled = !opt.disabled;
	
		// Support: IE<=11+
		// An input loses its value after becoming a radio
		input = document.createElement( "input" );
		input.value = "t";
		input.type = "radio";
		support.radioValue = input.value === "t";
	})();
	
	
	var nodeHook, boolHook,
		attrHandle = jQuery.expr.attrHandle;
	
	jQuery.fn.extend({
		attr: function( name, value ) {
			return access( this, jQuery.attr, name, value, arguments.length > 1 );
		},
	
		removeAttr: function( name ) {
			return this.each(function() {
				jQuery.removeAttr( this, name );
			});
		}
	});
	
	jQuery.extend({
		attr: function( elem, name, value ) {
			var hooks, ret,
				nType = elem.nodeType;
	
			// don't get/set attributes on text, comment and attribute nodes
			if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
				return;
			}
	
			// Fallback to prop when attributes are not supported
			if ( typeof elem.getAttribute === strundefined ) {
				return jQuery.prop( elem, name, value );
			}
	
			// All attributes are lowercase
			// Grab necessary hook if one is defined
			if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
				name = name.toLowerCase();
				hooks = jQuery.attrHooks[ name ] ||
					( jQuery.expr.match.bool.test( name ) ? boolHook : nodeHook );
			}
	
			if ( value !== undefined ) {
	
				if ( value === null ) {
					jQuery.removeAttr( elem, name );
	
				} else if ( hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
					return ret;
	
				} else {
					elem.setAttribute( name, value + "" );
					return value;
				}
	
			} else if ( hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
				return ret;
	
			} else {
				ret = jQuery.find.attr( elem, name );
	
				// Non-existent attributes return null, we normalize to undefined
				return ret == null ?
					undefined :
					ret;
			}
		},
	
		removeAttr: function( elem, value ) {
			var name, propName,
				i = 0,
				attrNames = value && value.match( rnotwhite );
	
			if ( attrNames && elem.nodeType === 1 ) {
				while ( (name = attrNames[i++]) ) {
					propName = jQuery.propFix[ name ] || name;
	
					// Boolean attributes get special treatment (#10870)
					if ( jQuery.expr.match.bool.test( name ) ) {
						// Set corresponding property to false
						elem[ propName ] = false;
					}
	
					elem.removeAttribute( name );
				}
			}
		},
	
		attrHooks: {
			type: {
				set: function( elem, value ) {
					if ( !support.radioValue && value === "radio" &&
						jQuery.nodeName( elem, "input" ) ) {
						var val = elem.value;
						elem.setAttribute( "type", value );
						if ( val ) {
							elem.value = val;
						}
						return value;
					}
				}
			}
		}
	});
	
	// Hooks for boolean attributes
	boolHook = {
		set: function( elem, value, name ) {
			if ( value === false ) {
				// Remove boolean attributes when set to false
				jQuery.removeAttr( elem, name );
			} else {
				elem.setAttribute( name, name );
			}
			return name;
		}
	};
	jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
		var getter = attrHandle[ name ] || jQuery.find.attr;
	
		attrHandle[ name ] = function( elem, name, isXML ) {
			var ret, handle;
			if ( !isXML ) {
				// Avoid an infinite loop by temporarily removing this function from the getter
				handle = attrHandle[ name ];
				attrHandle[ name ] = ret;
				ret = getter( elem, name, isXML ) != null ?
					name.toLowerCase() :
					null;
				attrHandle[ name ] = handle;
			}
			return ret;
		};
	});
	
	
	
	
	var rfocusable = /^(?:input|select|textarea|button)$/i;
	
	jQuery.fn.extend({
		prop: function( name, value ) {
			return access( this, jQuery.prop, name, value, arguments.length > 1 );
		},
	
		removeProp: function( name ) {
			return this.each(function() {
				delete this[ jQuery.propFix[ name ] || name ];
			});
		}
	});
	
	jQuery.extend({
		propFix: {
			"for": "htmlFor",
			"class": "className"
		},
	
		prop: function( elem, name, value ) {
			var ret, hooks, notxml,
				nType = elem.nodeType;
	
			// Don't get/set properties on text, comment and attribute nodes
			if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
				return;
			}
	
			notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
	
			if ( notxml ) {
				// Fix name and attach hooks
				name = jQuery.propFix[ name ] || name;
				hooks = jQuery.propHooks[ name ];
			}
	
			if ( value !== undefined ) {
				return hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ?
					ret :
					( elem[ name ] = value );
	
			} else {
				return hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ?
					ret :
					elem[ name ];
			}
		},
	
		propHooks: {
			tabIndex: {
				get: function( elem ) {
					return elem.hasAttribute( "tabindex" ) || rfocusable.test( elem.nodeName ) || elem.href ?
						elem.tabIndex :
						-1;
				}
			}
		}
	});
	
	if ( !support.optSelected ) {
		jQuery.propHooks.selected = {
			get: function( elem ) {
				var parent = elem.parentNode;
				if ( parent && parent.parentNode ) {
					parent.parentNode.selectedIndex;
				}
				return null;
			}
		};
	}
	
	jQuery.each([
		"tabIndex",
		"readOnly",
		"maxLength",
		"cellSpacing",
		"cellPadding",
		"rowSpan",
		"colSpan",
		"useMap",
		"frameBorder",
		"contentEditable"
	], function() {
		jQuery.propFix[ this.toLowerCase() ] = this;
	});
	
	
	
	
	var rclass = /[\t\r\n\f]/g;
	
	jQuery.fn.extend({
		addClass: function( value ) {
			var classes, elem, cur, clazz, j, finalValue,
				proceed = typeof value === "string" && value,
				i = 0,
				len = this.length;
	
			if ( jQuery.isFunction( value ) ) {
				return this.each(function( j ) {
					jQuery( this ).addClass( value.call( this, j, this.className ) );
				});
			}
	
			if ( proceed ) {
				// The disjunction here is for better compressibility (see removeClass)
				classes = ( value || "" ).match( rnotwhite ) || [];
	
				for ( ; i < len; i++ ) {
					elem = this[ i ];
					cur = elem.nodeType === 1 && ( elem.className ?
						( " " + elem.className + " " ).replace( rclass, " " ) :
						" "
					);
	
					if ( cur ) {
						j = 0;
						while ( (clazz = classes[j++]) ) {
							if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
								cur += clazz + " ";
							}
						}
	
						// only assign if different to avoid unneeded rendering.
						finalValue = jQuery.trim( cur );
						if ( elem.className !== finalValue ) {
							elem.className = finalValue;
						}
					}
				}
			}
	
			return this;
		},
	
		removeClass: function( value ) {
			var classes, elem, cur, clazz, j, finalValue,
				proceed = arguments.length === 0 || typeof value === "string" && value,
				i = 0,
				len = this.length;
	
			if ( jQuery.isFunction( value ) ) {
				return this.each(function( j ) {
					jQuery( this ).removeClass( value.call( this, j, this.className ) );
				});
			}
			if ( proceed ) {
				classes = ( value || "" ).match( rnotwhite ) || [];
	
				for ( ; i < len; i++ ) {
					elem = this[ i ];
					// This expression is here for better compressibility (see addClass)
					cur = elem.nodeType === 1 && ( elem.className ?
						( " " + elem.className + " " ).replace( rclass, " " ) :
						""
					);
	
					if ( cur ) {
						j = 0;
						while ( (clazz = classes[j++]) ) {
							// Remove *all* instances
							while ( cur.indexOf( " " + clazz + " " ) >= 0 ) {
								cur = cur.replace( " " + clazz + " ", " " );
							}
						}
	
						// Only assign if different to avoid unneeded rendering.
						finalValue = value ? jQuery.trim( cur ) : "";
						if ( elem.className !== finalValue ) {
							elem.className = finalValue;
						}
					}
				}
			}
	
			return this;
		},
	
		toggleClass: function( value, stateVal ) {
			var type = typeof value;
	
			if ( typeof stateVal === "boolean" && type === "string" ) {
				return stateVal ? this.addClass( value ) : this.removeClass( value );
			}
	
			if ( jQuery.isFunction( value ) ) {
				return this.each(function( i ) {
					jQuery( this ).toggleClass( value.call(this, i, this.className, stateVal), stateVal );
				});
			}
	
			return this.each(function() {
				if ( type === "string" ) {
					// Toggle individual class names
					var className,
						i = 0,
						self = jQuery( this ),
						classNames = value.match( rnotwhite ) || [];
	
					while ( (className = classNames[ i++ ]) ) {
						// Check each className given, space separated list
						if ( self.hasClass( className ) ) {
							self.removeClass( className );
						} else {
							self.addClass( className );
						}
					}
	
				// Toggle whole class name
				} else if ( type === strundefined || type === "boolean" ) {
					if ( this.className ) {
						// store className if set
						data_priv.set( this, "__className__", this.className );
					}
	
					// If the element has a class name or if we're passed `false`,
					// then remove the whole classname (if there was one, the above saved it).
					// Otherwise bring back whatever was previously saved (if anything),
					// falling back to the empty string if nothing was stored.
					this.className = this.className || value === false ? "" : data_priv.get( this, "__className__" ) || "";
				}
			});
		},
	
		hasClass: function( selector ) {
			var className = " " + selector + " ",
				i = 0,
				l = this.length;
			for ( ; i < l; i++ ) {
				if ( this[i].nodeType === 1 && (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) >= 0 ) {
					return true;
				}
			}
	
			return false;
		}
	});
	
	
	
	
	var rreturn = /\r/g;
	
	jQuery.fn.extend({
		val: function( value ) {
			var hooks, ret, isFunction,
				elem = this[0];
	
			if ( !arguments.length ) {
				if ( elem ) {
					hooks = jQuery.valHooks[ elem.type ] || jQuery.valHooks[ elem.nodeName.toLowerCase() ];
	
					if ( hooks && "get" in hooks && (ret = hooks.get( elem, "value" )) !== undefined ) {
						return ret;
					}
	
					ret = elem.value;
	
					return typeof ret === "string" ?
						// Handle most common string cases
						ret.replace(rreturn, "") :
						// Handle cases where value is null/undef or number
						ret == null ? "" : ret;
				}
	
				return;
			}
	
			isFunction = jQuery.isFunction( value );
	
			return this.each(function( i ) {
				var val;
	
				if ( this.nodeType !== 1 ) {
					return;
				}
	
				if ( isFunction ) {
					val = value.call( this, i, jQuery( this ).val() );
				} else {
					val = value;
				}
	
				// Treat null/undefined as ""; convert numbers to string
				if ( val == null ) {
					val = "";
	
				} else if ( typeof val === "number" ) {
					val += "";
	
				} else if ( jQuery.isArray( val ) ) {
					val = jQuery.map( val, function( value ) {
						return value == null ? "" : value + "";
					});
				}
	
				hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
	
				// If set returns undefined, fall back to normal setting
				if ( !hooks || !("set" in hooks) || hooks.set( this, val, "value" ) === undefined ) {
					this.value = val;
				}
			});
		}
	});
	
	jQuery.extend({
		valHooks: {
			option: {
				get: function( elem ) {
					var val = jQuery.find.attr( elem, "value" );
					return val != null ?
						val :
						// Support: IE10-11+
						// option.text throws exceptions (#14686, #14858)
						jQuery.trim( jQuery.text( elem ) );
				}
			},
			select: {
				get: function( elem ) {
					var value, option,
						options = elem.options,
						index = elem.selectedIndex,
						one = elem.type === "select-one" || index < 0,
						values = one ? null : [],
						max = one ? index + 1 : options.length,
						i = index < 0 ?
							max :
							one ? index : 0;
	
					// Loop through all the selected options
					for ( ; i < max; i++ ) {
						option = options[ i ];
	
						// IE6-9 doesn't update selected after form reset (#2551)
						if ( ( option.selected || i === index ) &&
								// Don't return options that are disabled or in a disabled optgroup
								( support.optDisabled ? !option.disabled : option.getAttribute( "disabled" ) === null ) &&
								( !option.parentNode.disabled || !jQuery.nodeName( option.parentNode, "optgroup" ) ) ) {
	
							// Get the specific value for the option
							value = jQuery( option ).val();
	
							// We don't need an array for one selects
							if ( one ) {
								return value;
							}
	
							// Multi-Selects return an array
							values.push( value );
						}
					}
	
					return values;
				},
	
				set: function( elem, value ) {
					var optionSet, option,
						options = elem.options,
						values = jQuery.makeArray( value ),
						i = options.length;
	
					while ( i-- ) {
						option = options[ i ];
						if ( (option.selected = jQuery.inArray( option.value, values ) >= 0) ) {
							optionSet = true;
						}
					}
	
					// Force browsers to behave consistently when non-matching value is set
					if ( !optionSet ) {
						elem.selectedIndex = -1;
					}
					return values;
				}
			}
		}
	});
	
	// Radios and checkboxes getter/setter
	jQuery.each([ "radio", "checkbox" ], function() {
		jQuery.valHooks[ this ] = {
			set: function( elem, value ) {
				if ( jQuery.isArray( value ) ) {
					return ( elem.checked = jQuery.inArray( jQuery(elem).val(), value ) >= 0 );
				}
			}
		};
		if ( !support.checkOn ) {
			jQuery.valHooks[ this ].get = function( elem ) {
				return elem.getAttribute("value") === null ? "on" : elem.value;
			};
		}
	});
	
	
	
	
	// Return jQuery for attributes-only inclusion
	
	
	jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +
		"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
		"change select submit keydown keypress keyup error contextmenu").split(" "), function( i, name ) {
	
		// Handle event binding
		jQuery.fn[ name ] = function( data, fn ) {
			return arguments.length > 0 ?
				this.on( name, null, data, fn ) :
				this.trigger( name );
		};
	});
	
	jQuery.fn.extend({
		hover: function( fnOver, fnOut ) {
			return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
		},
	
		bind: function( types, data, fn ) {
			return this.on( types, null, data, fn );
		},
		unbind: function( types, fn ) {
			return this.off( types, null, fn );
		},
	
		delegate: function( selector, types, data, fn ) {
			return this.on( types, selector, data, fn );
		},
		undelegate: function( selector, types, fn ) {
			// ( namespace ) or ( selector, types [, fn] )
			return arguments.length === 1 ? this.off( selector, "**" ) : this.off( types, selector || "**", fn );
		}
	});
	
	
	var nonce = jQuery.now();
	
	var rquery = (/\?/);
	
	
	
	// Support: Android 2.3
	// Workaround failure to string-cast null input
	jQuery.parseJSON = function( data ) {
		return JSON.parse( data + "" );
	};
	
	
	// Cross-browser xml parsing
	jQuery.parseXML = function( data ) {
		var xml, tmp;
		if ( !data || typeof data !== "string" ) {
			return null;
		}
	
		// Support: IE9
		try {
			tmp = new DOMParser();
			xml = tmp.parseFromString( data, "text/xml" );
		} catch ( e ) {
			xml = undefined;
		}
	
		if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
			jQuery.error( "Invalid XML: " + data );
		}
		return xml;
	};
	
	
	var
		rhash = /#.*$/,
		rts = /([?&])_=[^&]*/,
		rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,
		// #7653, #8125, #8152: local protocol detection
		rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
		rnoContent = /^(?:GET|HEAD)$/,
		rprotocol = /^\/\//,
		rurl = /^([\w.+-]+:)(?:\/\/(?:[^\/?#]*@|)([^\/?#:]*)(?::(\d+)|)|)/,
	
		/* Prefilters
		 * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
		 * 2) These are called:
		 *    - BEFORE asking for a transport
		 *    - AFTER param serialization (s.data is a string if s.processData is true)
		 * 3) key is the dataType
		 * 4) the catchall symbol "*" can be used
		 * 5) execution will start with transport dataType and THEN continue down to "*" if needed
		 */
		prefilters = {},
	
		/* Transports bindings
		 * 1) key is the dataType
		 * 2) the catchall symbol "*" can be used
		 * 3) selection will start with transport dataType and THEN go to "*" if needed
		 */
		transports = {},
	
		// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
		allTypes = "*/".concat( "*" ),
	
		// Document location
		ajaxLocation = window.location.href,
	
		// Segment location into parts
		ajaxLocParts = rurl.exec( ajaxLocation.toLowerCase() ) || [];
	
	// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
	function addToPrefiltersOrTransports( structure ) {
	
		// dataTypeExpression is optional and defaults to "*"
		return function( dataTypeExpression, func ) {
	
			if ( typeof dataTypeExpression !== "string" ) {
				func = dataTypeExpression;
				dataTypeExpression = "*";
			}
	
			var dataType,
				i = 0,
				dataTypes = dataTypeExpression.toLowerCase().match( rnotwhite ) || [];
	
			if ( jQuery.isFunction( func ) ) {
				// For each dataType in the dataTypeExpression
				while ( (dataType = dataTypes[i++]) ) {
					// Prepend if requested
					if ( dataType[0] === "+" ) {
						dataType = dataType.slice( 1 ) || "*";
						(structure[ dataType ] = structure[ dataType ] || []).unshift( func );
	
					// Otherwise append
					} else {
						(structure[ dataType ] = structure[ dataType ] || []).push( func );
					}
				}
			}
		};
	}
	
	// Base inspection function for prefilters and transports
	function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
	
		var inspected = {},
			seekingTransport = ( structure === transports );
	
		function inspect( dataType ) {
			var selected;
			inspected[ dataType ] = true;
			jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
				var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
				if ( typeof dataTypeOrTransport === "string" && !seekingTransport && !inspected[ dataTypeOrTransport ] ) {
					options.dataTypes.unshift( dataTypeOrTransport );
					inspect( dataTypeOrTransport );
					return false;
				} else if ( seekingTransport ) {
					return !( selected = dataTypeOrTransport );
				}
			});
			return selected;
		}
	
		return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
	}
	
	// A special extend for ajax options
	// that takes "flat" options (not to be deep extended)
	// Fixes #9887
	function ajaxExtend( target, src ) {
		var key, deep,
			flatOptions = jQuery.ajaxSettings.flatOptions || {};
	
		for ( key in src ) {
			if ( src[ key ] !== undefined ) {
				( flatOptions[ key ] ? target : ( deep || (deep = {}) ) )[ key ] = src[ key ];
			}
		}
		if ( deep ) {
			jQuery.extend( true, target, deep );
		}
	
		return target;
	}
	
	/* Handles responses to an ajax request:
	 * - finds the right dataType (mediates between content-type and expected dataType)
	 * - returns the corresponding response
	 */
	function ajaxHandleResponses( s, jqXHR, responses ) {
	
		var ct, type, finalDataType, firstDataType,
			contents = s.contents,
			dataTypes = s.dataTypes;
	
		// Remove auto dataType and get content-type in the process
		while ( dataTypes[ 0 ] === "*" ) {
			dataTypes.shift();
			if ( ct === undefined ) {
				ct = s.mimeType || jqXHR.getResponseHeader("Content-Type");
			}
		}
	
		// Check if we're dealing with a known content-type
		if ( ct ) {
			for ( type in contents ) {
				if ( contents[ type ] && contents[ type ].test( ct ) ) {
					dataTypes.unshift( type );
					break;
				}
			}
		}
	
		// Check to see if we have a response for the expected dataType
		if ( dataTypes[ 0 ] in responses ) {
			finalDataType = dataTypes[ 0 ];
		} else {
			// Try convertible dataTypes
			for ( type in responses ) {
				if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[0] ] ) {
					finalDataType = type;
					break;
				}
				if ( !firstDataType ) {
					firstDataType = type;
				}
			}
			// Or just use first one
			finalDataType = finalDataType || firstDataType;
		}
	
		// If we found a dataType
		// We add the dataType to the list if needed
		// and return the corresponding response
		if ( finalDataType ) {
			if ( finalDataType !== dataTypes[ 0 ] ) {
				dataTypes.unshift( finalDataType );
			}
			return responses[ finalDataType ];
		}
	}
	
	/* Chain conversions given the request and the original response
	 * Also sets the responseXXX fields on the jqXHR instance
	 */
	function ajaxConvert( s, response, jqXHR, isSuccess ) {
		var conv2, current, conv, tmp, prev,
			converters = {},
			// Work with a copy of dataTypes in case we need to modify it for conversion
			dataTypes = s.dataTypes.slice();
	
		// Create converters map with lowercased keys
		if ( dataTypes[ 1 ] ) {
			for ( conv in s.converters ) {
				converters[ conv.toLowerCase() ] = s.converters[ conv ];
			}
		}
	
		current = dataTypes.shift();
	
		// Convert to each sequential dataType
		while ( current ) {
	
			if ( s.responseFields[ current ] ) {
				jqXHR[ s.responseFields[ current ] ] = response;
			}
	
			// Apply the dataFilter if provided
			if ( !prev && isSuccess && s.dataFilter ) {
				response = s.dataFilter( response, s.dataType );
			}
	
			prev = current;
			current = dataTypes.shift();
	
			if ( current ) {
	
			// There's only work to do if current dataType is non-auto
				if ( current === "*" ) {
	
					current = prev;
	
				// Convert response if prev dataType is non-auto and differs from current
				} else if ( prev !== "*" && prev !== current ) {
	
					// Seek a direct converter
					conv = converters[ prev + " " + current ] || converters[ "* " + current ];
	
					// If none found, seek a pair
					if ( !conv ) {
						for ( conv2 in converters ) {
	
							// If conv2 outputs current
							tmp = conv2.split( " " );
							if ( tmp[ 1 ] === current ) {
	
								// If prev can be converted to accepted input
								conv = converters[ prev + " " + tmp[ 0 ] ] ||
									converters[ "* " + tmp[ 0 ] ];
								if ( conv ) {
									// Condense equivalence converters
									if ( conv === true ) {
										conv = converters[ conv2 ];
	
									// Otherwise, insert the intermediate dataType
									} else if ( converters[ conv2 ] !== true ) {
										current = tmp[ 0 ];
										dataTypes.unshift( tmp[ 1 ] );
									}
									break;
								}
							}
						}
					}
	
					// Apply converter (if not an equivalence)
					if ( conv !== true ) {
	
						// Unless errors are allowed to bubble, catch and return them
						if ( conv && s[ "throws" ] ) {
							response = conv( response );
						} else {
							try {
								response = conv( response );
							} catch ( e ) {
								return { state: "parsererror", error: conv ? e : "No conversion from " + prev + " to " + current };
							}
						}
					}
				}
			}
		}
	
		return { state: "success", data: response };
	}
	
	jQuery.extend({
	
		// Counter for holding the number of active queries
		active: 0,
	
		// Last-Modified header cache for next request
		lastModified: {},
		etag: {},
	
		ajaxSettings: {
			url: ajaxLocation,
			type: "GET",
			isLocal: rlocalProtocol.test( ajaxLocParts[ 1 ] ),
			global: true,
			processData: true,
			async: true,
			contentType: "application/x-www-form-urlencoded; charset=UTF-8",
			/*
			timeout: 0,
			data: null,
			dataType: null,
			username: null,
			password: null,
			cache: null,
			throws: false,
			traditional: false,
			headers: {},
			*/
	
			accepts: {
				"*": allTypes,
				text: "text/plain",
				html: "text/html",
				xml: "application/xml, text/xml",
				json: "application/json, text/javascript"
			},
	
			contents: {
				xml: /xml/,
				html: /html/,
				json: /json/
			},
	
			responseFields: {
				xml: "responseXML",
				text: "responseText",
				json: "responseJSON"
			},
	
			// Data converters
			// Keys separate source (or catchall "*") and destination types with a single space
			converters: {
	
				// Convert anything to text
				"* text": String,
	
				// Text to html (true = no transformation)
				"text html": true,
	
				// Evaluate text as a json expression
				"text json": jQuery.parseJSON,
	
				// Parse text as xml
				"text xml": jQuery.parseXML
			},
	
			// For options that shouldn't be deep extended:
			// you can add your own custom options here if
			// and when you create one that shouldn't be
			// deep extended (see ajaxExtend)
			flatOptions: {
				url: true,
				context: true
			}
		},
	
		// Creates a full fledged settings object into target
		// with both ajaxSettings and settings fields.
		// If target is omitted, writes into ajaxSettings.
		ajaxSetup: function( target, settings ) {
			return settings ?
	
				// Building a settings object
				ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
	
				// Extending ajaxSettings
				ajaxExtend( jQuery.ajaxSettings, target );
		},
	
		ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
		ajaxTransport: addToPrefiltersOrTransports( transports ),
	
		// Main method
		ajax: function( url, options ) {
	
			// If url is an object, simulate pre-1.5 signature
			if ( typeof url === "object" ) {
				options = url;
				url = undefined;
			}
	
			// Force options to be an object
			options = options || {};
	
			var transport,
				// URL without anti-cache param
				cacheURL,
				// Response headers
				responseHeadersString,
				responseHeaders,
				// timeout handle
				timeoutTimer,
				// Cross-domain detection vars
				parts,
				// To know if global events are to be dispatched
				fireGlobals,
				// Loop variable
				i,
				// Create the final options object
				s = jQuery.ajaxSetup( {}, options ),
				// Callbacks context
				callbackContext = s.context || s,
				// Context for global events is callbackContext if it is a DOM node or jQuery collection
				globalEventContext = s.context && ( callbackContext.nodeType || callbackContext.jquery ) ?
					jQuery( callbackContext ) :
					jQuery.event,
				// Deferreds
				deferred = jQuery.Deferred(),
				completeDeferred = jQuery.Callbacks("once memory"),
				// Status-dependent callbacks
				statusCode = s.statusCode || {},
				// Headers (they are sent all at once)
				requestHeaders = {},
				requestHeadersNames = {},
				// The jqXHR state
				state = 0,
				// Default abort message
				strAbort = "canceled",
				// Fake xhr
				jqXHR = {
					readyState: 0,
	
					// Builds headers hashtable if needed
					getResponseHeader: function( key ) {
						var match;
						if ( state === 2 ) {
							if ( !responseHeaders ) {
								responseHeaders = {};
								while ( (match = rheaders.exec( responseHeadersString )) ) {
									responseHeaders[ match[1].toLowerCase() ] = match[ 2 ];
								}
							}
							match = responseHeaders[ key.toLowerCase() ];
						}
						return match == null ? null : match;
					},
	
					// Raw string
					getAllResponseHeaders: function() {
						return state === 2 ? responseHeadersString : null;
					},
	
					// Caches the header
					setRequestHeader: function( name, value ) {
						var lname = name.toLowerCase();
						if ( !state ) {
							name = requestHeadersNames[ lname ] = requestHeadersNames[ lname ] || name;
							requestHeaders[ name ] = value;
						}
						return this;
					},
	
					// Overrides response content-type header
					overrideMimeType: function( type ) {
						if ( !state ) {
							s.mimeType = type;
						}
						return this;
					},
	
					// Status-dependent callbacks
					statusCode: function( map ) {
						var code;
						if ( map ) {
							if ( state < 2 ) {
								for ( code in map ) {
									// Lazy-add the new callback in a way that preserves old ones
									statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
								}
							} else {
								// Execute the appropriate callbacks
								jqXHR.always( map[ jqXHR.status ] );
							}
						}
						return this;
					},
	
					// Cancel the request
					abort: function( statusText ) {
						var finalText = statusText || strAbort;
						if ( transport ) {
							transport.abort( finalText );
						}
						done( 0, finalText );
						return this;
					}
				};
	
			// Attach deferreds
			deferred.promise( jqXHR ).complete = completeDeferred.add;
			jqXHR.success = jqXHR.done;
			jqXHR.error = jqXHR.fail;
	
			// Remove hash character (#7531: and string promotion)
			// Add protocol if not provided (prefilters might expect it)
			// Handle falsy url in the settings object (#10093: consistency with old signature)
			// We also use the url parameter if available
			s.url = ( ( url || s.url || ajaxLocation ) + "" ).replace( rhash, "" )
				.replace( rprotocol, ajaxLocParts[ 1 ] + "//" );
	
			// Alias method option to type as per ticket #12004
			s.type = options.method || options.type || s.method || s.type;
	
			// Extract dataTypes list
			s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().match( rnotwhite ) || [ "" ];
	
			// A cross-domain request is in order when we have a protocol:host:port mismatch
			if ( s.crossDomain == null ) {
				parts = rurl.exec( s.url.toLowerCase() );
				s.crossDomain = !!( parts &&
					( parts[ 1 ] !== ajaxLocParts[ 1 ] || parts[ 2 ] !== ajaxLocParts[ 2 ] ||
						( parts[ 3 ] || ( parts[ 1 ] === "http:" ? "80" : "443" ) ) !==
							( ajaxLocParts[ 3 ] || ( ajaxLocParts[ 1 ] === "http:" ? "80" : "443" ) ) )
				);
			}
	
			// Convert data if not already a string
			if ( s.data && s.processData && typeof s.data !== "string" ) {
				s.data = jQuery.param( s.data, s.traditional );
			}
	
			// Apply prefilters
			inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
	
			// If request was aborted inside a prefilter, stop there
			if ( state === 2 ) {
				return jqXHR;
			}
	
			// We can fire global events as of now if asked to
			// Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
			fireGlobals = jQuery.event && s.global;
	
			// Watch for a new set of requests
			if ( fireGlobals && jQuery.active++ === 0 ) {
				jQuery.event.trigger("ajaxStart");
			}
	
			// Uppercase the type
			s.type = s.type.toUpperCase();
	
			// Determine if request has content
			s.hasContent = !rnoContent.test( s.type );
	
			// Save the URL in case we're toying with the If-Modified-Since
			// and/or If-None-Match header later on
			cacheURL = s.url;
	
			// More options handling for requests with no content
			if ( !s.hasContent ) {
	
				// If data is available, append data to url
				if ( s.data ) {
					cacheURL = ( s.url += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data );
					// #9682: remove data so that it's not used in an eventual retry
					delete s.data;
				}
	
				// Add anti-cache in url if needed
				if ( s.cache === false ) {
					s.url = rts.test( cacheURL ) ?
	
						// If there is already a '_' parameter, set its value
						cacheURL.replace( rts, "$1_=" + nonce++ ) :
	
						// Otherwise add one to the end
						cacheURL + ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + nonce++;
				}
			}
	
			// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
			if ( s.ifModified ) {
				if ( jQuery.lastModified[ cacheURL ] ) {
					jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
				}
				if ( jQuery.etag[ cacheURL ] ) {
					jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
				}
			}
	
			// Set the correct header, if data is being sent
			if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
				jqXHR.setRequestHeader( "Content-Type", s.contentType );
			}
	
			// Set the Accepts header for the server, depending on the dataType
			jqXHR.setRequestHeader(
				"Accept",
				s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[0] ] ?
					s.accepts[ s.dataTypes[0] ] + ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
					s.accepts[ "*" ]
			);
	
			// Check for headers option
			for ( i in s.headers ) {
				jqXHR.setRequestHeader( i, s.headers[ i ] );
			}
	
			// Allow custom headers/mimetypes and early abort
			if ( s.beforeSend && ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || state === 2 ) ) {
				// Abort if not done already and return
				return jqXHR.abort();
			}
	
			// Aborting is no longer a cancellation
			strAbort = "abort";
	
			// Install callbacks on deferreds
			for ( i in { success: 1, error: 1, complete: 1 } ) {
				jqXHR[ i ]( s[ i ] );
			}
	
			// Get transport
			transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
	
			// If no transport, we auto-abort
			if ( !transport ) {
				done( -1, "No Transport" );
			} else {
				jqXHR.readyState = 1;
	
				// Send global event
				if ( fireGlobals ) {
					globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
				}
				// Timeout
				if ( s.async && s.timeout > 0 ) {
					timeoutTimer = setTimeout(function() {
						jqXHR.abort("timeout");
					}, s.timeout );
				}
	
				try {
					state = 1;
					transport.send( requestHeaders, done );
				} catch ( e ) {
					// Propagate exception as error if not done
					if ( state < 2 ) {
						done( -1, e );
					// Simply rethrow otherwise
					} else {
						throw e;
					}
				}
			}
	
			// Callback for when everything is done
			function done( status, nativeStatusText, responses, headers ) {
				var isSuccess, success, error, response, modified,
					statusText = nativeStatusText;
	
				// Called once
				if ( state === 2 ) {
					return;
				}
	
				// State is "done" now
				state = 2;
	
				// Clear timeout if it exists
				if ( timeoutTimer ) {
					clearTimeout( timeoutTimer );
				}
	
				// Dereference transport for early garbage collection
				// (no matter how long the jqXHR object will be used)
				transport = undefined;
	
				// Cache response headers
				responseHeadersString = headers || "";
	
				// Set readyState
				jqXHR.readyState = status > 0 ? 4 : 0;
	
				// Determine if successful
				isSuccess = status >= 200 && status < 300 || status === 304;
	
				// Get response data
				if ( responses ) {
					response = ajaxHandleResponses( s, jqXHR, responses );
				}
	
				// Convert no matter what (that way responseXXX fields are always set)
				response = ajaxConvert( s, response, jqXHR, isSuccess );
	
				// If successful, handle type chaining
				if ( isSuccess ) {
	
					// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
					if ( s.ifModified ) {
						modified = jqXHR.getResponseHeader("Last-Modified");
						if ( modified ) {
							jQuery.lastModified[ cacheURL ] = modified;
						}
						modified = jqXHR.getResponseHeader("etag");
						if ( modified ) {
							jQuery.etag[ cacheURL ] = modified;
						}
					}
	
					// if no content
					if ( status === 204 || s.type === "HEAD" ) {
						statusText = "nocontent";
	
					// if not modified
					} else if ( status === 304 ) {
						statusText = "notmodified";
	
					// If we have data, let's convert it
					} else {
						statusText = response.state;
						success = response.data;
						error = response.error;
						isSuccess = !error;
					}
				} else {
					// Extract error from statusText and normalize for non-aborts
					error = statusText;
					if ( status || !statusText ) {
						statusText = "error";
						if ( status < 0 ) {
							status = 0;
						}
					}
				}
	
				// Set data for the fake xhr object
				jqXHR.status = status;
				jqXHR.statusText = ( nativeStatusText || statusText ) + "";
	
				// Success/Error
				if ( isSuccess ) {
					deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
				} else {
					deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
				}
	
				// Status-dependent callbacks
				jqXHR.statusCode( statusCode );
				statusCode = undefined;
	
				if ( fireGlobals ) {
					globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
						[ jqXHR, s, isSuccess ? success : error ] );
				}
	
				// Complete
				completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
	
				if ( fireGlobals ) {
					globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
					// Handle the global AJAX counter
					if ( !( --jQuery.active ) ) {
						jQuery.event.trigger("ajaxStop");
					}
				}
			}
	
			return jqXHR;
		},
	
		getJSON: function( url, data, callback ) {
			return jQuery.get( url, data, callback, "json" );
		},
	
		getScript: function( url, callback ) {
			return jQuery.get( url, undefined, callback, "script" );
		}
	});
	
	jQuery.each( [ "get", "post" ], function( i, method ) {
		jQuery[ method ] = function( url, data, callback, type ) {
			// Shift arguments if data argument was omitted
			if ( jQuery.isFunction( data ) ) {
				type = type || callback;
				callback = data;
				data = undefined;
			}
	
			return jQuery.ajax({
				url: url,
				type: method,
				dataType: type,
				data: data,
				success: callback
			});
		};
	});
	
	
	jQuery._evalUrl = function( url ) {
		return jQuery.ajax({
			url: url,
			type: "GET",
			dataType: "script",
			async: false,
			global: false,
			"throws": true
		});
	};
	
	
	jQuery.fn.extend({
		wrapAll: function( html ) {
			var wrap;
	
			if ( jQuery.isFunction( html ) ) {
				return this.each(function( i ) {
					jQuery( this ).wrapAll( html.call(this, i) );
				});
			}
	
			if ( this[ 0 ] ) {
	
				// The elements to wrap the target around
				wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );
	
				if ( this[ 0 ].parentNode ) {
					wrap.insertBefore( this[ 0 ] );
				}
	
				wrap.map(function() {
					var elem = this;
	
					while ( elem.firstElementChild ) {
						elem = elem.firstElementChild;
					}
	
					return elem;
				}).append( this );
			}
	
			return this;
		},
	
		wrapInner: function( html ) {
			if ( jQuery.isFunction( html ) ) {
				return this.each(function( i ) {
					jQuery( this ).wrapInner( html.call(this, i) );
				});
			}
	
			return this.each(function() {
				var self = jQuery( this ),
					contents = self.contents();
	
				if ( contents.length ) {
					contents.wrapAll( html );
	
				} else {
					self.append( html );
				}
			});
		},
	
		wrap: function( html ) {
			var isFunction = jQuery.isFunction( html );
	
			return this.each(function( i ) {
				jQuery( this ).wrapAll( isFunction ? html.call(this, i) : html );
			});
		},
	
		unwrap: function() {
			return this.parent().each(function() {
				if ( !jQuery.nodeName( this, "body" ) ) {
					jQuery( this ).replaceWith( this.childNodes );
				}
			}).end();
		}
	});
	
	
	jQuery.expr.filters.hidden = function( elem ) {
		// Support: Opera <= 12.12
		// Opera reports offsetWidths and offsetHeights less than zero on some elements
		return elem.offsetWidth <= 0 && elem.offsetHeight <= 0;
	};
	jQuery.expr.filters.visible = function( elem ) {
		return !jQuery.expr.filters.hidden( elem );
	};
	
	
	
	
	var r20 = /%20/g,
		rbracket = /\[\]$/,
		rCRLF = /\r?\n/g,
		rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
		rsubmittable = /^(?:input|select|textarea|keygen)/i;
	
	function buildParams( prefix, obj, traditional, add ) {
		var name;
	
		if ( jQuery.isArray( obj ) ) {
			// Serialize array item.
			jQuery.each( obj, function( i, v ) {
				if ( traditional || rbracket.test( prefix ) ) {
					// Treat each array item as a scalar.
					add( prefix, v );
	
				} else {
					// Item is non-scalar (array or object), encode its numeric index.
					buildParams( prefix + "[" + ( typeof v === "object" ? i : "" ) + "]", v, traditional, add );
				}
			});
	
		} else if ( !traditional && jQuery.type( obj ) === "object" ) {
			// Serialize object item.
			for ( name in obj ) {
				buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
			}
	
		} else {
			// Serialize scalar item.
			add( prefix, obj );
		}
	}
	
	// Serialize an array of form elements or a set of
	// key/values into a query string
	jQuery.param = function( a, traditional ) {
		var prefix,
			s = [],
			add = function( key, value ) {
				// If value is a function, invoke it and return its value
				value = jQuery.isFunction( value ) ? value() : ( value == null ? "" : value );
				s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );
			};
	
		// Set traditional to true for jQuery <= 1.3.2 behavior.
		if ( traditional === undefined ) {
			traditional = jQuery.ajaxSettings && jQuery.ajaxSettings.traditional;
		}
	
		// If an array was passed in, assume that it is an array of form elements.
		if ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
			// Serialize the form elements
			jQuery.each( a, function() {
				add( this.name, this.value );
			});
	
		} else {
			// If traditional, encode the "old" way (the way 1.3.2 or older
			// did it), otherwise encode params recursively.
			for ( prefix in a ) {
				buildParams( prefix, a[ prefix ], traditional, add );
			}
		}
	
		// Return the resulting serialization
		return s.join( "&" ).replace( r20, "+" );
	};
	
	jQuery.fn.extend({
		serialize: function() {
			return jQuery.param( this.serializeArray() );
		},
		serializeArray: function() {
			return this.map(function() {
				// Can add propHook for "elements" to filter or add form elements
				var elements = jQuery.prop( this, "elements" );
				return elements ? jQuery.makeArray( elements ) : this;
			})
			.filter(function() {
				var type = this.type;
	
				// Use .is( ":disabled" ) so that fieldset[disabled] works
				return this.name && !jQuery( this ).is( ":disabled" ) &&
					rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
					( this.checked || !rcheckableType.test( type ) );
			})
			.map(function( i, elem ) {
				var val = jQuery( this ).val();
	
				return val == null ?
					null :
					jQuery.isArray( val ) ?
						jQuery.map( val, function( val ) {
							return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
						}) :
						{ name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
			}).get();
		}
	});
	
	
	jQuery.ajaxSettings.xhr = function() {
		try {
			return new XMLHttpRequest();
		} catch( e ) {}
	};
	
	var xhrId = 0,
		xhrCallbacks = {},
		xhrSuccessStatus = {
			// file protocol always yields status code 0, assume 200
			0: 200,
			// Support: IE9
			// #1450: sometimes IE returns 1223 when it should be 204
			1223: 204
		},
		xhrSupported = jQuery.ajaxSettings.xhr();
	
	// Support: IE9
	// Open requests must be manually aborted on unload (#5280)
	// See https://support.microsoft.com/kb/2856746 for more info
	if ( window.attachEvent ) {
		window.attachEvent( "onunload", function() {
			for ( var key in xhrCallbacks ) {
				xhrCallbacks[ key ]();
			}
		});
	}
	
	support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
	support.ajax = xhrSupported = !!xhrSupported;
	
	jQuery.ajaxTransport(function( options ) {
		var callback;
	
		// Cross domain only allowed if supported through XMLHttpRequest
		if ( support.cors || xhrSupported && !options.crossDomain ) {
			return {
				send: function( headers, complete ) {
					var i,
						xhr = options.xhr(),
						id = ++xhrId;
	
					xhr.open( options.type, options.url, options.async, options.username, options.password );
	
					// Apply custom fields if provided
					if ( options.xhrFields ) {
						for ( i in options.xhrFields ) {
							xhr[ i ] = options.xhrFields[ i ];
						}
					}
	
					// Override mime type if needed
					if ( options.mimeType && xhr.overrideMimeType ) {
						xhr.overrideMimeType( options.mimeType );
					}
	
					// X-Requested-With header
					// For cross-domain requests, seeing as conditions for a preflight are
					// akin to a jigsaw puzzle, we simply never set it to be sure.
					// (it can always be set on a per-request basis or even using ajaxSetup)
					// For same-domain requests, won't change header if already provided.
					if ( !options.crossDomain && !headers["X-Requested-With"] ) {
						headers["X-Requested-With"] = "XMLHttpRequest";
					}
	
					// Set headers
					for ( i in headers ) {
						xhr.setRequestHeader( i, headers[ i ] );
					}
	
					// Callback
					callback = function( type ) {
						return function() {
							if ( callback ) {
								delete xhrCallbacks[ id ];
								callback = xhr.onload = xhr.onerror = null;
	
								if ( type === "abort" ) {
									xhr.abort();
								} else if ( type === "error" ) {
									complete(
										// file: protocol always yields status 0; see #8605, #14207
										xhr.status,
										xhr.statusText
									);
								} else {
									complete(
										xhrSuccessStatus[ xhr.status ] || xhr.status,
										xhr.statusText,
										// Support: IE9
										// Accessing binary-data responseText throws an exception
										// (#11426)
										typeof xhr.responseText === "string" ? {
											text: xhr.responseText
										} : undefined,
										xhr.getAllResponseHeaders()
									);
								}
							}
						};
					};
	
					// Listen to events
					xhr.onload = callback();
					xhr.onerror = callback("error");
	
					// Create the abort callback
					callback = xhrCallbacks[ id ] = callback("abort");
	
					try {
						// Do send the request (this may raise an exception)
						xhr.send( options.hasContent && options.data || null );
					} catch ( e ) {
						// #14683: Only rethrow if this hasn't been notified as an error yet
						if ( callback ) {
							throw e;
						}
					}
				},
	
				abort: function() {
					if ( callback ) {
						callback();
					}
				}
			};
		}
	});
	
	
	
	
	// Install script dataType
	jQuery.ajaxSetup({
		accepts: {
			script: "text/javascript, application/javascript, application/ecmascript, application/x-ecmascript"
		},
		contents: {
			script: /(?:java|ecma)script/
		},
		converters: {
			"text script": function( text ) {
				jQuery.globalEval( text );
				return text;
			}
		}
	});
	
	// Handle cache's special case and crossDomain
	jQuery.ajaxPrefilter( "script", function( s ) {
		if ( s.cache === undefined ) {
			s.cache = false;
		}
		if ( s.crossDomain ) {
			s.type = "GET";
		}
	});
	
	// Bind script tag hack transport
	jQuery.ajaxTransport( "script", function( s ) {
		// This transport only deals with cross domain requests
		if ( s.crossDomain ) {
			var script, callback;
			return {
				send: function( _, complete ) {
					script = jQuery("<script>").prop({
						async: true,
						charset: s.scriptCharset,
						src: s.url
					}).on(
						"load error",
						callback = function( evt ) {
							script.remove();
							callback = null;
							if ( evt ) {
								complete( evt.type === "error" ? 404 : 200, evt.type );
							}
						}
					);
					document.head.appendChild( script[ 0 ] );
				},
				abort: function() {
					if ( callback ) {
						callback();
					}
				}
			};
		}
	});
	
	
	
	
	var oldCallbacks = [],
		rjsonp = /(=)\?(?=&|$)|\?\?/;
	
	// Default jsonp settings
	jQuery.ajaxSetup({
		jsonp: "callback",
		jsonpCallback: function() {
			var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce++ ) );
			this[ callback ] = true;
			return callback;
		}
	});
	
	// Detect, normalize options and install callbacks for jsonp requests
	jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
	
		var callbackName, overwritten, responseContainer,
			jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
				"url" :
				typeof s.data === "string" && !( s.contentType || "" ).indexOf("application/x-www-form-urlencoded") && rjsonp.test( s.data ) && "data"
			);
	
		// Handle iff the expected data type is "jsonp" or we have a parameter to set
		if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
	
			// Get callback name, remembering preexisting value associated with it
			callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?
				s.jsonpCallback() :
				s.jsonpCallback;
	
			// Insert callback into url or form data
			if ( jsonProp ) {
				s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
			} else if ( s.jsonp !== false ) {
				s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
			}
	
			// Use data converter to retrieve json after script execution
			s.converters["script json"] = function() {
				if ( !responseContainer ) {
					jQuery.error( callbackName + " was not called" );
				}
				return responseContainer[ 0 ];
			};
	
			// force json dataType
			s.dataTypes[ 0 ] = "json";
	
			// Install callback
			overwritten = window[ callbackName ];
			window[ callbackName ] = function() {
				responseContainer = arguments;
			};
	
			// Clean-up function (fires after converters)
			jqXHR.always(function() {
				// Restore preexisting value
				window[ callbackName ] = overwritten;
	
				// Save back as free
				if ( s[ callbackName ] ) {
					// make sure that re-using the options doesn't screw things around
					s.jsonpCallback = originalSettings.jsonpCallback;
	
					// save the callback name for future use
					oldCallbacks.push( callbackName );
				}
	
				// Call if it was a function and we have a response
				if ( responseContainer && jQuery.isFunction( overwritten ) ) {
					overwritten( responseContainer[ 0 ] );
				}
	
				responseContainer = overwritten = undefined;
			});
	
			// Delegate to script
			return "script";
		}
	});
	
	
	
	
	// data: string of html
	// context (optional): If specified, the fragment will be created in this context, defaults to document
	// keepScripts (optional): If true, will include scripts passed in the html string
	jQuery.parseHTML = function( data, context, keepScripts ) {
		if ( !data || typeof data !== "string" ) {
			return null;
		}
		if ( typeof context === "boolean" ) {
			keepScripts = context;
			context = false;
		}
		context = context || document;
	
		var parsed = rsingleTag.exec( data ),
			scripts = !keepScripts && [];
	
		// Single tag
		if ( parsed ) {
			return [ context.createElement( parsed[1] ) ];
		}
	
		parsed = jQuery.buildFragment( [ data ], context, scripts );
	
		if ( scripts && scripts.length ) {
			jQuery( scripts ).remove();
		}
	
		return jQuery.merge( [], parsed.childNodes );
	};
	
	
	// Keep a copy of the old load method
	var _load = jQuery.fn.load;
	
	/**
	 * Load a url into a page
	 */
	jQuery.fn.load = function( url, params, callback ) {
		if ( typeof url !== "string" && _load ) {
			return _load.apply( this, arguments );
		}
	
		var selector, type, response,
			self = this,
			off = url.indexOf(" ");
	
		if ( off >= 0 ) {
			selector = jQuery.trim( url.slice( off ) );
			url = url.slice( 0, off );
		}
	
		// If it's a function
		if ( jQuery.isFunction( params ) ) {
	
			// We assume that it's the callback
			callback = params;
			params = undefined;
	
		// Otherwise, build a param string
		} else if ( params && typeof params === "object" ) {
			type = "POST";
		}
	
		// If we have elements to modify, make the request
		if ( self.length > 0 ) {
			jQuery.ajax({
				url: url,
	
				// if "type" variable is undefined, then "GET" method will be used
				type: type,
				dataType: "html",
				data: params
			}).done(function( responseText ) {
	
				// Save response for use in complete callback
				response = arguments;
	
				self.html( selector ?
	
					// If a selector was specified, locate the right elements in a dummy div
					// Exclude scripts to avoid IE 'Permission Denied' errors
					jQuery("<div>").append( jQuery.parseHTML( responseText ) ).find( selector ) :
	
					// Otherwise use the full result
					responseText );
	
			}).complete( callback && function( jqXHR, status ) {
				self.each( callback, response || [ jqXHR.responseText, status, jqXHR ] );
			});
		}
	
		return this;
	};
	
	
	
	
	// Attach a bunch of functions for handling common AJAX events
	jQuery.each( [ "ajaxStart", "ajaxStop", "ajaxComplete", "ajaxError", "ajaxSuccess", "ajaxSend" ], function( i, type ) {
		jQuery.fn[ type ] = function( fn ) {
			return this.on( type, fn );
		};
	});
	
	
	
	
	jQuery.expr.filters.animated = function( elem ) {
		return jQuery.grep(jQuery.timers, function( fn ) {
			return elem === fn.elem;
		}).length;
	};
	
	
	
	
	var docElem = window.document.documentElement;
	
	/**
	 * Gets a window from an element
	 */
	function getWindow( elem ) {
		return jQuery.isWindow( elem ) ? elem : elem.nodeType === 9 && elem.defaultView;
	}
	
	jQuery.offset = {
		setOffset: function( elem, options, i ) {
			var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
				position = jQuery.css( elem, "position" ),
				curElem = jQuery( elem ),
				props = {};
	
			// Set position first, in-case top/left are set even on static elem
			if ( position === "static" ) {
				elem.style.position = "relative";
			}
	
			curOffset = curElem.offset();
			curCSSTop = jQuery.css( elem, "top" );
			curCSSLeft = jQuery.css( elem, "left" );
			calculatePosition = ( position === "absolute" || position === "fixed" ) &&
				( curCSSTop + curCSSLeft ).indexOf("auto") > -1;
	
			// Need to be able to calculate position if either
			// top or left is auto and position is either absolute or fixed
			if ( calculatePosition ) {
				curPosition = curElem.position();
				curTop = curPosition.top;
				curLeft = curPosition.left;
	
			} else {
				curTop = parseFloat( curCSSTop ) || 0;
				curLeft = parseFloat( curCSSLeft ) || 0;
			}
	
			if ( jQuery.isFunction( options ) ) {
				options = options.call( elem, i, curOffset );
			}
	
			if ( options.top != null ) {
				props.top = ( options.top - curOffset.top ) + curTop;
			}
			if ( options.left != null ) {
				props.left = ( options.left - curOffset.left ) + curLeft;
			}
	
			if ( "using" in options ) {
				options.using.call( elem, props );
	
			} else {
				curElem.css( props );
			}
		}
	};
	
	jQuery.fn.extend({
		offset: function( options ) {
			if ( arguments.length ) {
				return options === undefined ?
					this :
					this.each(function( i ) {
						jQuery.offset.setOffset( this, options, i );
					});
			}
	
			var docElem, win,
				elem = this[ 0 ],
				box = { top: 0, left: 0 },
				doc = elem && elem.ownerDocument;
	
			if ( !doc ) {
				return;
			}
	
			docElem = doc.documentElement;
	
			// Make sure it's not a disconnected DOM node
			if ( !jQuery.contains( docElem, elem ) ) {
				return box;
			}
	
			// Support: BlackBerry 5, iOS 3 (original iPhone)
			// If we don't have gBCR, just use 0,0 rather than error
			if ( typeof elem.getBoundingClientRect !== strundefined ) {
				box = elem.getBoundingClientRect();
			}
			win = getWindow( doc );
			return {
				top: box.top + win.pageYOffset - docElem.clientTop,
				left: box.left + win.pageXOffset - docElem.clientLeft
			};
		},
	
		position: function() {
			if ( !this[ 0 ] ) {
				return;
			}
	
			var offsetParent, offset,
				elem = this[ 0 ],
				parentOffset = { top: 0, left: 0 };
	
			// Fixed elements are offset from window (parentOffset = {top:0, left: 0}, because it is its only offset parent
			if ( jQuery.css( elem, "position" ) === "fixed" ) {
				// Assume getBoundingClientRect is there when computed position is fixed
				offset = elem.getBoundingClientRect();
	
			} else {
				// Get *real* offsetParent
				offsetParent = this.offsetParent();
	
				// Get correct offsets
				offset = this.offset();
				if ( !jQuery.nodeName( offsetParent[ 0 ], "html" ) ) {
					parentOffset = offsetParent.offset();
				}
	
				// Add offsetParent borders
				parentOffset.top += jQuery.css( offsetParent[ 0 ], "borderTopWidth", true );
				parentOffset.left += jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true );
			}
	
			// Subtract parent offsets and element margins
			return {
				top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
				left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
			};
		},
	
		offsetParent: function() {
			return this.map(function() {
				var offsetParent = this.offsetParent || docElem;
	
				while ( offsetParent && ( !jQuery.nodeName( offsetParent, "html" ) && jQuery.css( offsetParent, "position" ) === "static" ) ) {
					offsetParent = offsetParent.offsetParent;
				}
	
				return offsetParent || docElem;
			});
		}
	});
	
	// Create scrollLeft and scrollTop methods
	jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
		var top = "pageYOffset" === prop;
	
		jQuery.fn[ method ] = function( val ) {
			return access( this, function( elem, method, val ) {
				var win = getWindow( elem );
	
				if ( val === undefined ) {
					return win ? win[ prop ] : elem[ method ];
				}
	
				if ( win ) {
					win.scrollTo(
						!top ? val : window.pageXOffset,
						top ? val : window.pageYOffset
					);
	
				} else {
					elem[ method ] = val;
				}
			}, method, val, arguments.length, null );
		};
	});
	
	// Support: Safari<7+, Chrome<37+
	// Add the top/left cssHooks using jQuery.fn.position
	// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
	// Blink bug: https://code.google.com/p/chromium/issues/detail?id=229280
	// getComputedStyle returns percent when specified for top/left/bottom/right;
	// rather than make the css module depend on the offset module, just check for it here
	jQuery.each( [ "top", "left" ], function( i, prop ) {
		jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
			function( elem, computed ) {
				if ( computed ) {
					computed = curCSS( elem, prop );
					// If curCSS returns percentage, fallback to offset
					return rnumnonpx.test( computed ) ?
						jQuery( elem ).position()[ prop ] + "px" :
						computed;
				}
			}
		);
	});
	
	
	// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
	jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
		jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name }, function( defaultExtra, funcName ) {
			// Margin is only for outerHeight, outerWidth
			jQuery.fn[ funcName ] = function( margin, value ) {
				var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
					extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );
	
				return access( this, function( elem, type, value ) {
					var doc;
	
					if ( jQuery.isWindow( elem ) ) {
						// As of 5/8/2012 this will yield incorrect results for Mobile Safari, but there
						// isn't a whole lot we can do. See pull request at this URL for discussion:
						// https://github.com/jquery/jquery/pull/764
						return elem.document.documentElement[ "client" + name ];
					}
	
					// Get document width or height
					if ( elem.nodeType === 9 ) {
						doc = elem.documentElement;
	
						// Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
						// whichever is greatest
						return Math.max(
							elem.body[ "scroll" + name ], doc[ "scroll" + name ],
							elem.body[ "offset" + name ], doc[ "offset" + name ],
							doc[ "client" + name ]
						);
					}
	
					return value === undefined ?
						// Get width or height on the element, requesting but not forcing parseFloat
						jQuery.css( elem, type, extra ) :
	
						// Set width or height on the element
						jQuery.style( elem, type, value, extra );
				}, type, chainable ? margin : undefined, chainable, null );
			};
		});
	});
	
	
	// The number of elements contained in the matched element set
	jQuery.fn.size = function() {
		return this.length;
	};
	
	jQuery.fn.andSelf = jQuery.fn.addBack;
	
	
	
	
	// Register as a named AMD module, since jQuery can be concatenated with other
	// files that may use define, but not via a proper concatenation script that
	// understands anonymous AMD modules. A named AMD is safest and most robust
	// way to register. Lowercase jquery is used because AMD module names are
	// derived from file names, and jQuery is normally delivered in a lowercase
	// file name. Do this after creating the global so that if an AMD module wants
	// to call noConflict to hide this version of jQuery, it will work.
	
	// Note that for maximum portability, libraries that are not jQuery should
	// declare themselves as anonymous modules, and avoid setting a global if an
	// AMD loader is present. jQuery is a special case. For more information, see
	// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon
	
	if ( true ) {
		!(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_RESULT__ = function() {
			return jQuery;
		}.apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__), __WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
	}
	
	
	
	
	var
		// Map over jQuery in case of overwrite
		_jQuery = window.jQuery,
	
		// Map over the $ in case of overwrite
		_$ = window.$;
	
	jQuery.noConflict = function( deep ) {
		if ( window.$ === jQuery ) {
			window.$ = _$;
		}
	
		if ( deep && window.jQuery === jQuery ) {
			window.jQuery = _jQuery;
		}
	
		return jQuery;
	};
	
	// Expose jQuery and $ identifiers, even in AMD
	// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
	// and CommonJS for browser emulators (#13566)
	if ( typeof noGlobal === strundefined ) {
		window.jQuery = window.$ = jQuery;
	}
	
	
	
	
	return jQuery;
	
	}));


/***/ },
/* 3 */
/*!****************************************************!*\
  !*** ./app/controllers/MathSwipeController.coffee ***!
  \****************************************************/
/***/ function(module, exports, __webpack_require__) {

	var $, AdjacentCellsCalculator, Board, BoardSolvedService, Cell, ClickHandler, Colors, DFS, ExpressionGenerator, GeneralTests, GoalContainer, HashingService, HowToPlay, InputSolver, MathSwipeController, RandomizedFitLength, ResetButton, RunningSum, ShareGameService, SolutionService, Title, TrackingService;
	
	$ = __webpack_require__(/*! jquery */ 2);
	
	AdjacentCellsCalculator = __webpack_require__(/*! ../services/AdjacentCellsCalculator */ 4);
	
	BoardSolvedService = __webpack_require__(/*! ../services/BoardSolvedService */ 6);
	
	ClickHandler = __webpack_require__(/*! ../services/ClickHandler */ 7);
	
	DFS = __webpack_require__(/*! ../services/DFS */ 9);
	
	ExpressionGenerator = __webpack_require__(/*! ../services/ExpressionGenerator */ 11);
	
	HashingService = __webpack_require__(/*! ../services/HashingService */ 12);
	
	HowToPlay = __webpack_require__(/*! ../services/HowToPlay */ 13);
	
	InputSolver = __webpack_require__(/*! ../services/InputSolver */ 14);
	
	RandomizedFitLength = __webpack_require__(/*! ../services/RandomizedFitLength */ 15);
	
	ResetButton = __webpack_require__(/*! ../services/ResetButton */ 16);
	
	RunningSum = __webpack_require__(/*! ../services/RunningSum */ 17);
	
	ShareGameService = __webpack_require__(/*! ../services/ShareGameService */ 18);
	
	SolutionService = __webpack_require__(/*! ../services/SolutionService */ 20);
	
	Title = __webpack_require__(/*! ../services/Title */ 21);
	
	TrackingService = __webpack_require__(/*! ../services/TrackingService */ 8);
	
	Board = __webpack_require__(/*! ../views/Board */ 22);
	
	Cell = __webpack_require__(/*! ../views/Cell */ 23);
	
	Colors = __webpack_require__(/*! ../views/Colors */ 24);
	
	GoalContainer = __webpack_require__(/*! ../views/GoalContainer */ 25);
	
	GeneralTests = __webpack_require__(/*! ../../tests/controllers/GeneralTests */ 26);
	
	MathSwipeController = (function() {
	  function MathSwipeController() {
	    var length;
	    length = 3;
	    this.gameScene = this.createGameScene();
	    this.symbols = this.getSymbols();
	    this.bindNewGameButton();
	    HowToPlay.createHowToPlay(this.isMobile);
	    if (this.isMobile().any() != null) {
	      TrackingService.mobileView();
	      Title.mobileTitle();
	    } else {
	      TrackingService.desktopView();
	      this.cursorToPointer();
	    }
	    ShareGameService.setMessage();
	    this.initialize();
	  }
	
	  MathSwipeController.prototype.initialize = function() {
	    var boardValues, decoded, goals, inputLengths, inputs, length, ref, ref1, solutionPlacements;
	    length = 3;
	    solutionPlacements = [];
	    inputLengths = [];
	    boardValues = [];
	    inputs = [];
	    goals = [];
	    decoded = HashingService.decodeMap();
	    ref = HashingService.parse(decoded), boardValues = ref[0], goals = ref[1], solutionPlacements = ref[2];
	    if (this.malformedDecode(boardValues, goals, solutionPlacements)) {
	      inputLengths = RandomizedFitLength.generate(Math.pow(length, 2));
	      ref1 = this.generateInputs(inputLengths), inputs = ref1[0], goals = ref1[1];
	      boardValues = this.generateBoard(inputs, length, solutionPlacements);
	    }
	    this.goalContainer = new GoalContainer(goals, Colors);
	    this.board = new Board(boardValues, this.gameScene, goals, this.symbols, this.goalContainer, this.isMobile().any() != null, Cell, Colors, ClickHandler, SolutionService, BoardSolvedService, RunningSum);
	    ResetButton.bindClick(this.board, RunningSum);
	    RunningSum.empty();
	    if (!HashingService.reloadPageWithHash(this.board, solutionPlacements, SolutionService)) {
	      return this.createNewGame();
	    }
	  };
	
	  MathSwipeController.prototype.isMobile = function() {
	    return {
	      Android: function() {
	        return navigator.userAgent.match(/Android/i);
	      },
	      BlackBerry: function() {
	        return navigator.userAgent.match(/BlackBerry/i);
	      },
	      iOS: function() {
	        return navigator.userAgent.match(/iPhone|iPad|iPod/i);
	      },
	      Opera: function() {
	        return navigator.userAgent.match(/Opera Mini/i);
	      },
	      Windows: function() {
	        return navigator.userAgent.match(/IEMobile/i);
	      },
	      any: function() {
	        return this.Android() || this.BlackBerry() || this.iOS() || this.Opera() || this.Windows();
	      }
	    };
	  };
	
	  MathSwipeController.prototype.bindNewGameButton = function() {
	    return $('#new-game-button').click((function(_this) {
	      return function(e) {
	        TrackingService.boardEvent('new game');
	        return _this.createNewGame();
	      };
	    })(this));
	  };
	
	  MathSwipeController.prototype.createNewGame = function() {
	    this.gameScene.clear();
	    this.goalContainer.clearGoals();
	    ResetButton.unbindClick();
	    HashingService.emptyHash();
	    return this.initialize();
	  };
	
	  MathSwipeController.prototype.createGameScene = function() {
	    var gameDom, scene, size;
	    gameDom = document.getElementById('game');
	    size = Math.min(Math.max($(window).width(), 310), 500);
	    scene = new Two({
	      fullscreen: false,
	      autostart: true,
	      width: size,
	      height: size
	    }).appendTo(gameDom);
	    return scene;
	  };
	
	  MathSwipeController.prototype.createGoalsScene = function() {
	    var goalsDom;
	    return goalsDom = document.getElementById('goals');
	  };
	
	  MathSwipeController.prototype.cursorToPointer = function() {
	    $('#game').addClass('pointer');
	    return $('#game-button-wrapper').addClass('pointer');
	  };
	
	  MathSwipeController.prototype.getSymbols = function() {
	    var i, index, len, scene, svg, svgs, symbols;
	    scene = new Two();
	    svgs = $('#assets svg');
	    symbols = [];
	    for (index = i = 0, len = svgs.length; i < len; index = ++i) {
	      svg = svgs[index];
	      symbols.push(scene.interpret(svg));
	      symbols[index].visible = false;
	    }
	    return symbols;
	  };
	
	  MathSwipeController.prototype.generateBoard = function(inputs, length, solutionPlacements) {
	    return DFS.setEquationsOnGrid(length, inputs, AdjacentCellsCalculator, solutionPlacements);
	  };
	
	  MathSwipeController.prototype.generateInputs = function(inputLengths) {
	    var expression, goals, i, inputSize, inputs, len, value;
	    goals = [];
	    inputs = [];
	    for (i = 0, len = inputLengths.length; i < len; i++) {
	      inputSize = inputLengths[i];
	      value = -1;
	      while (value < 1 || value > 300) {
	        expression = ExpressionGenerator.generate(inputSize);
	        value = InputSolver.compute(expression);
	      }
	      goals.push(InputSolver.compute(expression));
	      inputs.push(expression.split(''));
	    }
	    return [inputs, goals];
	  };
	
	  MathSwipeController.prototype.malformedDecode = function(boardValues, goals, solutionPlacements) {
	    return boardValues.length < 1 || goals.length < 1 || solutionPlacements.length < 1;
	  };
	
	  MathSwipeController.prototype.randExpression = function(length) {
	    return ExpressionGenerator.generate(length);
	  };
	
	  return MathSwipeController;
	
	})();
	
	module.exports = MathSwipeController;


/***/ },
/* 4 */
/*!*****************************************************!*\
  !*** ./app/services/AdjacentCellsCalculator.coffee ***!
  \*****************************************************/
/***/ function(module, exports, __webpack_require__) {

	var AdjacentCellsCalculator, Tuple;
	
	Tuple = __webpack_require__(/*! ../models/Tuple */ 5);
	
	AdjacentCellsCalculator = (function() {
	  function AdjacentCellsCalculator() {}
	
	  AdjacentCellsCalculator.getAdjacent = function(solutionGrid, x, y) {
	    var cells, i, j, k, l, len, len1, ref, ref1, tuple;
	    cells = [];
	    ref = [x - 1, x, x + 1];
	    for (k = 0, len = ref.length; k < len; k++) {
	      i = ref[k];
	      ref1 = [y - 1, y, y + 1];
	      for (l = 0, len1 = ref1.length; l < len1; l++) {
	        j = ref1[l];
	        if (!(i === x && j === y)) {
	          tuple = this.validLocation(solutionGrid, i, j);
	          if (tuple !== null) {
	            cells.push(tuple);
	          }
	        }
	      }
	    }
	    return cells;
	  };
	
	  AdjacentCellsCalculator.validLocation = function(solutionGrid, x, y) {
	    if (this.isValidIndex(solutionGrid, x, y)) {
	      if (this.isEmpty(solutionGrid, x, y)) {
	        return new Tuple(x, y);
	      }
	    }
	    return null;
	  };
	
	  AdjacentCellsCalculator.isValidIndex = function(solutionGrid, x, y) {
	    return x < solutionGrid.length && x >= 0 && y < solutionGrid.length && y >= 0;
	  };
	
	  AdjacentCellsCalculator.isEmpty = function(solutionGrid, x, y) {
	    return solutionGrid[y][x].value === ' ';
	  };
	
	  return AdjacentCellsCalculator;
	
	})();
	
	module.exports = AdjacentCellsCalculator;


/***/ },
/* 5 */
/*!*********************************!*\
  !*** ./app/models/Tuple.coffee ***!
  \*********************************/
/***/ function(module, exports) {

	var Tuple,
	  bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
	
	Tuple = (function() {
	  function Tuple(x, y) {
	    this.x = x;
	    this.y = y;
	    this.equals = bind(this.equals, this);
	  }
	
	  Tuple.prototype.equals = function(otherTuple) {
	    if (otherTuple === null) {
	      return false;
	    }
	    return this.x === otherTuple.x && this.y === otherTuple.y;
	  };
	
	  return Tuple;
	
	})();
	
	module.exports = Tuple;


/***/ },
/* 6 */
/*!************************************************!*\
  !*** ./app/services/BoardSolvedService.coffee ***!
  \************************************************/
/***/ function(module, exports, __webpack_require__) {

	var $, BoardSolvedService;
	
	$ = __webpack_require__(/*! jquery */ 2);
	
	BoardSolvedService = (function() {
	  function BoardSolvedService() {}
	
	  BoardSolvedService.isCleared = function(board) {
	    var dim, i, len, ref, value;
	    dim = board.dimension;
	    ref = board.boardValues[dim - 1];
	    for (i = 0, len = ref.length; i < len; i++) {
	      value = ref[i];
	      if (value !== ' ') {
	        return false;
	      }
	    }
	    return true;
	  };
	
	  BoardSolvedService.createNewBoard = function() {
	    return $('#new-game-button').trigger('click');
	  };
	
	  return BoardSolvedService;
	
	})();
	
	module.exports = BoardSolvedService;


/***/ },
/* 7 */
/*!******************************************!*\
  !*** ./app/services/ClickHandler.coffee ***!
  \******************************************/
/***/ function(module, exports, __webpack_require__) {

	var $, ClickHandler, TrackingService, Tuple;
	
	$ = __webpack_require__(/*! jquery */ 2);
	
	Tuple = __webpack_require__(/*! ../models/Tuple */ 5);
	
	TrackingService = __webpack_require__(/*! ./TrackingService */ 8);
	
	ClickHandler = (function() {
	  function ClickHandler(board, solutionService, goalContainer, isMobile, BoardSolvedService, RunningSum) {
	    this.board = board;
	    this.solutionService = solutionService;
	    this.goalContainer = goalContainer;
	    this.isMobile = isMobile;
	    this.BoardSolvedService = BoardSolvedService;
	    this.RunningSum = RunningSum;
	    this.clicked = [];
	    this.mouseDown = false;
	  }
	
	  ClickHandler.prototype.setMouseAsDown = function() {
	    return this.mouseDown = true;
	  };
	
	  ClickHandler.prototype.setMouseAsUp = function() {
	    if (!this.isMobile) {
	      this.checkForSolution();
	      this.unselectAll();
	      if (this.BoardSolvedService.isCleared(this.board)) {
	        TrackingService.boardEvent('solved');
	        this.board.successAnimation();
	      } else if (this.goalContainer.isEmpty()) {
	        this.RunningSum.display(this.RunningSum.tilesEmptyString);
	      }
	    }
	    return this.mouseDown = false;
	  };
	
	  ClickHandler.prototype.isMouseDown = function() {
	    return this.mouseDown;
	  };
	
	  ClickHandler.prototype.isOnMobile = function() {
	    return this.isMobile;
	  };
	
	  ClickHandler.prototype.bindDefaultMouseEvents = function() {
	    var body;
	    body = $('body');
	    body.click((function(_this) {
	      return function(e) {
	        e.preventDefault();
	        return _this.unselectAll();
	      };
	    })(this));
	    body.mousedown((function(_this) {
	      return function(e) {
	        return e.preventDefault();
	      };
	    })(this));
	    return body.mouseup((function(_this) {
	      return function(e) {
	        e.preventDefault();
	        if (!_this.isMobile) {
	          _this.unselectAll();
	        }
	        return _this.mousedown = false;
	      };
	    })(this));
	  };
	
	  ClickHandler.prototype.onSelect = function(cell) {
	    if (!this.isSelected(cell)) {
	      if (!this.isAdjacentToLast(cell)) {
	        this.unselectAll();
	      }
	      this.setMouseAsDown();
	      this.clicked.push(cell);
	      cell.select();
	      this.solutionService.initialize(this.clicked);
	      this.RunningSum.display(this.solutionService.solution, this.solutionService.value);
	      if (this.isMobile && this.checkForSolution()) {
	        this.unselectAll();
	        if (this.BoardSolvedService.isCleared(this.board)) {
	          this.board.successAnimation();
	        }
	      }
	    }
	    return false;
	  };
	
	  ClickHandler.prototype.onUnselect = function(cell) {
	    if (this.isSelected(cell)) {
	      if (this.clicked[this.clicked.length - 1] === cell) {
	        cell.unselect();
	        return this.clicked.pop();
	      } else {
	        this.unselectAll();
	        throw "Last item in 'clicked' was not the given cell";
	      }
	    }
	  };
	
	  ClickHandler.prototype.isSelected = function(cell) {
	    var iterCell, j, len, ref;
	    ref = this.clicked;
	    for (j = 0, len = ref.length; j < len; j++) {
	      iterCell = ref[j];
	      if (cell === iterCell) {
	        return true;
	      }
	    }
	    return false;
	  };
	
	  ClickHandler.prototype.unselectAll = function() {
	    var i, j, ref;
	    if (this.RunningSum.runningSumElem.html() !== this.RunningSum.solutionOperatorString) {
	      this.RunningSum.display(this.RunningSum.emptyString);
	    }
	    if (this.clicked.length < 1) {
	      return;
	    }
	    for (i = j = ref = this.clicked.length - 1; ref <= 0 ? j <= 0 : j >= 0; i = ref <= 0 ? ++j : --j) {
	      this.clicked[i].unselect();
	    }
	    return this.clicked = [];
	  };
	
	  ClickHandler.prototype.checkForSolution = function() {
	    if (this.solutionService.isSolution()) {
	      this.goalContainer.deleteGoal(this.solutionService.valueIndex);
	      this.board.deleteCells(this.clickedToTuples());
	      return true;
	    }
	    return false;
	  };
	
	  ClickHandler.prototype.isAdjacentToLast = function(cell) {
	    var last;
	    if (this.clicked.length < 1) {
	      return true;
	    }
	    last = this.clicked[this.clicked.length - 1];
	    return Math.abs(cell.row - last.row) <= 1 && Math.abs(cell.col - last.col) <= 1;
	  };
	
	  ClickHandler.prototype.clickedToTuples = function() {
	    var cell, j, len, ref, tuples;
	    tuples = [];
	    ref = this.clicked;
	    for (j = 0, len = ref.length; j < len; j++) {
	      cell = ref[j];
	      tuples.push(new Tuple(cell.col, cell.row));
	    }
	    return tuples;
	  };
	
	  return ClickHandler;
	
	})();
	
	module.exports = ClickHandler;


/***/ },
/* 8 */
/*!*********************************************!*\
  !*** ./app/services/TrackingService.coffee ***!
  \*********************************************/
/***/ function(module, exports) {

	var TrackingService;
	
	TrackingService = (function() {
	  function TrackingService() {}
	
	  TrackingService.boardEvent = function(label) {
	    if ((typeof ga) == null) {
	      return;
	    }
	    if (label != null) {
	      return ga('send', 'event', 'board', label);
	    } else {
	      return ga('send', 'event', 'board');
	    }
	  };
	
	  TrackingService.mobileView = function() {
	    return this.pageview('Mobile');
	  };
	
	  TrackingService.desktopView = function() {
	    return this.pageview('Desktop');
	  };
	
	  TrackingService.pageview = function(label) {
	    if ((typeof ga) == null) {
	      return;
	    }
	    if (label != null) {
	      return ga('send', 'pageview', label);
	    } else {
	      return ga('send', 'pageview');
	    }
	  };
	
	  return TrackingService;
	
	})();
	
	module.exports = TrackingService;


/***/ },
/* 9 */
/*!*********************************!*\
  !*** ./app/services/DFS.coffee ***!
  \*********************************/
/***/ function(module, exports, __webpack_require__) {

	var DFS, GridCell, Tuple;
	
	GridCell = __webpack_require__(/*! ../models/GridCell */ 10);
	
	Tuple = __webpack_require__(/*! ../models/Tuple */ 5);
	
	DFS = (function() {
	  function DFS() {}
	
	  DFS.setEquationsOnGrid = function(size, inputList, AdjacentCells, solutionPlacements) {
	    var col, grid, i, idx, index, input, j, k, l, len, n, o, placementList, ref, ref1, ref2, row;
	    this.size = size;
	    this.AdjacentCells = AdjacentCells;
	    this.clearSolutionGrid();
	    grid = this.createEmptyGrid();
	    for (i = j = 0; j < 10000; i = ++j) {
	      if (this.hasFoundSolution(inputList)) {
	        index = 0;
	        for (k = 0, len = inputList.length; k < len; k++) {
	          input = inputList[k];
	          placementList = [];
	          for (idx = l = 0, ref = input.length; 0 <= ref ? l < ref : l > ref; idx = 0 <= ref ? ++l : --l) {
	            placementList.push(this.solutionPlacements[index++]);
	          }
	          solutionPlacements.push(placementList);
	        }
	        for (row = n = 0, ref1 = this.solutionGrid.length; 0 <= ref1 ? n < ref1 : n > ref1; row = 0 <= ref1 ? ++n : --n) {
	          for (col = o = 0, ref2 = this.solutionGrid.length; 0 <= ref2 ? o < ref2 : o > ref2; col = 0 <= ref2 ? ++o : --o) {
	            grid[this.solutionGrid[row][col].y][this.solutionGrid[row][col].x] = this.solutionGrid[row][col].value;
	          }
	        }
	        return grid;
	      }
	      this.clearSolutionGrid();
	    }
	    return null;
	  };
	
	  DFS.clearSolutionGrid = function() {
	    var col, j, ref, results, row;
	    this.solutionGrid = [];
	    results = [];
	    for (row = j = 0, ref = this.size; 0 <= ref ? j < ref : j > ref; row = 0 <= ref ? ++j : --j) {
	      this.solutionGrid.push([]);
	      results.push((function() {
	        var k, ref1, results1;
	        results1 = [];
	        for (col = k = 0, ref1 = this.size; 0 <= ref1 ? k < ref1 : k > ref1; col = 0 <= ref1 ? ++k : --k) {
	          results1.push(this.solutionGrid[row].push(new GridCell(col, row)));
	        }
	        return results1;
	      }).call(this));
	    }
	    return results;
	  };
	
	  DFS.hasFoundSolution = function(inputList) {
	    var cloneGrid, hasPlaced, i, index, j, k, ref, seedX, seedY;
	    this.solutionPlacements = [];
	    for (i = j = 0, ref = inputList.length; 0 <= ref ? j < ref : j > ref; i = 0 <= ref ? ++j : --j) {
	      hasPlaced = false;
	      for (index = k = 0; k < 20; index = ++k) {
	        if (!hasPlaced) {
	          cloneGrid = this.cloneSolutionGrid();
	          seedX = Math.floor(Math.random() * this.size);
	          seedY = Math.floor(Math.random() * this.size);
	          if (this.search(seedX, seedY, inputList[i], this.solutionPlacements)) {
	            hasPlaced = true;
	          } else {
	            this.solutionGrid = cloneGrid;
	          }
	        }
	      }
	      if (hasPlaced) {
	        this.pushDownSolutionGrid();
	      } else {
	        return false;
	      }
	    }
	    return true;
	  };
	
	  DFS.search = function(seedX, seedY, input, solutionPlacements1) {
	    var curr, toVisit;
	    this.solutionPlacements = solutionPlacements1;
	    if (input.length === 0) {
	      return true;
	    }
	    toVisit = this.shuffle(this.AdjacentCells.getAdjacent(this.solutionGrid, seedX, seedY));
	    if (toVisit.length === 0) {
	      return false;
	    }
	    curr = toVisit.pop();
	    while (curr !== void 0) {
	      this.solutionGrid[curr.y][curr.x].value = input[0];
	      this.solutionPlacements.push([curr.y, curr.x]);
	      if (!this.search(curr.x, curr.y, input.slice(1, input.length), this.solutionPlacements)) {
	        this.solutionGrid[curr.y][curr.x].value = ' ';
	        this.solutionPlacements.pop();
	        curr = toVisit.pop();
	      } else {
	        return true;
	      }
	    }
	    return false;
	  };
	
	  DFS.cloneSolutionGrid = function() {
	    var cloneGrid, col, j, k, ref, ref1, row;
	    cloneGrid = [];
	    for (row = j = 0, ref = this.solutionGrid.length; 0 <= ref ? j < ref : j > ref; row = 0 <= ref ? ++j : --j) {
	      cloneGrid.push([]);
	      for (col = k = 0, ref1 = this.solutionGrid.length; 0 <= ref1 ? k < ref1 : k > ref1; col = 0 <= ref1 ? ++k : --k) {
	        cloneGrid[row].push(new GridCell(this.solutionGrid[row][col].x, this.solutionGrid[row][col].y));
	        cloneGrid[row][col].value = this.solutionGrid[row][col].value;
	      }
	    }
	    return cloneGrid;
	  };
	
	  DFS.pushDownSolutionGrid = function() {
	    var col, j, ref, results, row, up;
	    results = [];
	    for (row = j = ref = this.solutionGrid.length - 1; ref <= 1 ? j <= 1 : j >= 1; row = ref <= 1 ? ++j : --j) {
	      results.push((function() {
	        var k, ref1, results1;
	        results1 = [];
	        for (col = k = ref1 = this.solutionGrid.length - 1; ref1 <= 0 ? k <= 0 : k >= 0; col = ref1 <= 0 ? ++k : --k) {
	          if (this.solutionGrid[row][col].value !== ' ') {
	            results1.push((function() {
	              var l, ref2, results2;
	              results2 = [];
	              for (up = l = ref2 = row - 1; ref2 <= 0 ? l <= 0 : l >= 0; up = ref2 <= 0 ? ++l : --l) {
	                if (this.solutionGrid[up][col].value === ' ') {
	                  this.swapCells(row, col, up, col);
	                  break;
	                } else {
	                  results2.push(void 0);
	                }
	              }
	              return results2;
	            }).call(this));
	          } else {
	            results1.push(void 0);
	          }
	        }
	        return results1;
	      }).call(this));
	    }
	    return results;
	  };
	
	  DFS.swapCells = function(r1, c1, r2, c2) {
	    var temp;
	    temp = this.solutionGrid[r1][c1];
	    this.solutionGrid[r1][c1] = this.solutionGrid[r2][c2];
	    return this.solutionGrid[r2][c2] = temp;
	  };
	
	  DFS.createEmptyGrid = function() {
	    var col, grid, j, k, ref, ref1, row;
	    grid = [];
	    for (row = j = 0, ref = this.size; 0 <= ref ? j < ref : j > ref; row = 0 <= ref ? ++j : --j) {
	      grid.push([]);
	      for (col = k = 0, ref1 = this.size; 0 <= ref1 ? k < ref1 : k > ref1; col = 0 <= ref1 ? ++k : --k) {
	        grid[row].push(' ');
	      }
	    }
	    return grid;
	  };
	
	  DFS.shuffle = function(array) {
	    var i, m, t;
	    m = array.length;
	    while (m) {
	      i = Math.floor(Math.random() * m--);
	      t = array[m];
	      array[m] = array[i];
	      array[i] = t;
	    }
	    return array;
	  };
	
	  return DFS;
	
	})();
	
	module.exports = DFS;


/***/ },
/* 10 */
/*!************************************!*\
  !*** ./app/models/GridCell.coffee ***!
  \************************************/
/***/ function(module, exports) {

	var GridCell,
	  bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
	
	GridCell = (function() {
	  function GridCell(x, y) {
	    this.x = x;
	    this.y = y;
	    this.isEmpty = bind(this.isEmpty, this);
	    this.value = ' ';
	    this.isClicked = false;
	  }
	
	  GridCell.prototype.isEmpty = function() {
	    return this.value === ' ';
	  };
	
	  return GridCell;
	
	})();
	
	module.exports = GridCell;


/***/ },
/* 11 */
/*!*************************************************!*\
  !*** ./app/services/ExpressionGenerator.coffee ***!
  \*************************************************/
/***/ function(module, exports) {

	var ExpressionGenerator;
	
	ExpressionGenerator = (function() {
	  function ExpressionGenerator() {}
	
	  ExpressionGenerator.randInclusive = function(min, max) {
	    return Math.floor(Math.random() * (max - min + 1)) + min;
	  };
	
	  ExpressionGenerator.genRandomDigit = function(min, max) {
	    return this.randInclusive(min, max).toString();
	  };
	
	  ExpressionGenerator.genRandomOperator = function() {
	    switch (this.randInclusive(0, 2)) {
	      case 0:
	        return '+';
	      case 1:
	        return '-';
	      case 2:
	        return '*';
	      default:
	        return '?';
	    }
	  };
	
	  ExpressionGenerator.generate = function(length) {
	    var opIndex;
	    if (length < 1) {
	      throw 'Length cannot be less than 1';
	    } else if (length === 1) {
	      return this.genRandomDigit(1, 9);
	    } else if (length === 2) {
	      return (this.genRandomDigit(1, 9)) + (this.genRandomDigit(0, 9));
	    } else if (length === 3) {
	      return (this.genRandomDigit(1, 9)) + this.genRandomOperator() + (this.genRandomDigit(1, 9));
	    } else {
	      opIndex = this.randInclusive(2, length - 1);
	      return (this.generate(opIndex - 1)) + this.genRandomOperator() + (this.generate(length - opIndex));
	    }
	  };
	
	  return ExpressionGenerator;
	
	})();
	
	module.exports = ExpressionGenerator;


/***/ },
/* 12 */
/*!********************************************!*\
  !*** ./app/services/HashingService.coffee ***!
  \********************************************/
/***/ function(module, exports) {

	var HashingService,
	  indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
	
	HashingService = (function() {
	  var alphabet;
	
	  function HashingService() {}
	
	  alphabet = ['"', '{', '}', '[', ']', ',', ':', 'b', 'g', 'p', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '+', '-', '*'];
	
	  HashingService.reloadPageWithHash = function(board, solutionPlacements, SolutionService) {
	    if (!this.checkSolutionPlacements(board, solutionPlacements, SolutionService)) {
	      this.emptyHash();
	      return false;
	    }
	    return HashingService.setHash(board.initialValues, board.goals, solutionPlacements);
	  };
	
	  HashingService.emptyHash = function() {
	    return window.location.hash = '';
	  };
	
	  HashingService.setHash = function(boardValues, goals, solutionPlacements) {
	    return window.location.hash = this.encode(boardValues, goals, solutionPlacements);
	  };
	
	  HashingService.encode = function(boardValues, goals, solutionPlacements) {
	    var k, l, length, list, pos, ref, ref1;
	    boardValues = (JSON.stringify(boardValues)).replace(/(\[|\]|"|,|{|})*/g, '');
	    length = Math.sqrt(boardValues.length);
	    for (list = k = 0, ref = solutionPlacements.length; 0 <= ref ? k < ref : k > ref; list = 0 <= ref ? ++k : --k) {
	      for (pos = l = 0, ref1 = solutionPlacements[list].length; 0 <= ref1 ? l < ref1 : l > ref1; pos = 0 <= ref1 ? ++l : --l) {
	        solutionPlacements[list][pos] = solutionPlacements[list][pos][0] * length + solutionPlacements[list][pos][1];
	      }
	    }
	    return btoa(JSON.stringify({
	      b: boardValues,
	      g: goals,
	      p: solutionPlacements
	    }));
	  };
	
	  HashingService.decodeMap = function() {
	    var decoded, decoded_s, e;
	    try {
	      decoded_s = atob(window.location.hash.substr(1, window.location.hash.length));
	      decoded = JSON.parse(decoded_s);
	    } catch (_error) {
	      e = _error;
	      decoded = null;
	    }
	    return decoded;
	  };
	
	  HashingService.parse = function(decoded) {
	    var b, g, length, p;
	    if (!this.successfulDecode(decoded)) {
	      return [[], [], []];
	    }
	    length = Math.sqrt(decoded.b.length);
	    b = this.decodeBoardValues(decoded.b, length);
	    g = this.decodeGoals(decoded.g);
	    p = this.decodeSolutionPlacements(decoded.p, length);
	    return [b, g, p];
	  };
	
	  HashingService.successfulDecode = function(decoded) {
	    return (decoded != null) && (decoded.p != null) && (decoded.g != null) && (decoded.p != null) && this.regexPass(decoded);
	  };
	
	  HashingService.regexPass = function(decoded) {
	    var char, k, len;
	    for (k = 0, len = decoded.length; k < len; k++) {
	      char = decoded[k];
	      if (indexOf.call(alphabet, char) < 0) {
	        return false;
	      }
	    }
	    return true;
	  };
	
	  HashingService.decodeBoardValues = function(copy, length, boardValues) {
	    var i, index, j, k, l, ref, ref1, row;
	    if (boardValues == null) {
	      boardValues = [];
	    }
	    index = 0;
	    for (i = k = 0, ref = length; 0 <= ref ? k < ref : k > ref; i = 0 <= ref ? ++k : --k) {
	      row = [];
	      for (j = l = 0, ref1 = length; 0 <= ref1 ? l < ref1 : l > ref1; j = 0 <= ref1 ? ++l : --l) {
	        row.push(copy[index++]);
	      }
	      boardValues.push(row);
	    }
	    return boardValues;
	  };
	
	  HashingService.decodeGoals = function(toCopy) {
	    return toCopy.slice(0);
	  };
	
	  HashingService.decodeSolutionPlacements = function(copy, length, solutionPlacements) {
	    var coord, expression, k, l, list, ref, ref1;
	    if (solutionPlacements == null) {
	      solutionPlacements = [];
	    }
	    for (list = k = 0, ref = copy.length; 0 <= ref ? k < ref : k > ref; list = 0 <= ref ? ++k : --k) {
	      expression = [];
	      for (coord = l = 0, ref1 = copy[list].length; 0 <= ref1 ? l < ref1 : l > ref1; coord = 0 <= ref1 ? ++l : --l) {
	        expression.push([Math.floor(copy[list][coord] / length), copy[list][coord] % length]);
	      }
	      solutionPlacements.push(expression);
	    }
	    return solutionPlacements;
	  };
	
	  HashingService.checkSolutionPlacements = function(board, solutionPlacements, SolutionService) {
	    var cell, clickedCells, expression, index, inputs, k, l, len, len1, len2, m, n, ref, solution;
	    this.initializeTempBoard(board);
	    this.solutionService = new SolutionService(this.tempBoard, board.goals);
	    inputs = [];
	    for (k = 0, len = solutionPlacements.length; k < len; k++) {
	      expression = solutionPlacements[k];
	      clickedCells = [];
	      for (index = l = 0, ref = expression.length; 0 <= ref ? l < ref : l > ref; index = 0 <= ref ? ++l : --l) {
	        cell = expression[index];
	        clickedCells.push({
	          row: cell[0],
	          col: cell[1]
	        });
	      }
	      this.solutionService.initialize(clickedCells);
	      solution = [];
	      for (m = 0, len1 = clickedCells.length; m < len1; m++) {
	        cell = clickedCells[m];
	        solution.push(this.tempBoard.boardValues[cell.row][cell.col]);
	        this.tempBoard.boardValues[cell.row][cell.col] = ' ';
	      }
	      this.pushDownTempBoard();
	      if (!this.solutionService.isSolution()) {
	        return false;
	      }
	      inputs.push(solution);
	    }
	    for (n = 0, len2 = inputs.length; n < len2; n++) {
	      expression = inputs[n];
	      console.log(expression);
	    }
	    console.log('\n');
	    return true;
	  };
	
	  HashingService.initializeTempBoard = function(board) {
	    var col, i, k, len, ref, results, row;
	    this.tempBoard = {};
	    this.tempBoard.boardValues = [];
	    ref = board.initialValues;
	    results = [];
	    for (i = k = 0, len = ref.length; k < len; i = ++k) {
	      row = ref[i];
	      this.tempBoard.boardValues.push([]);
	      results.push((function() {
	        var l, len1, results1;
	        results1 = [];
	        for (l = 0, len1 = row.length; l < len1; l++) {
	          col = row[l];
	          results1.push(this.tempBoard.boardValues[i].push(col));
	        }
	        return results1;
	      }).call(this));
	    }
	    return results;
	  };
	
	  HashingService.pushDownTempBoard = function() {
	    var col, k, ref, results, row, up;
	    results = [];
	    for (row = k = ref = this.tempBoard.boardValues.length - 1; ref <= 1 ? k <= 1 : k >= 1; row = ref <= 1 ? ++k : --k) {
	      results.push((function() {
	        var l, ref1, results1;
	        results1 = [];
	        for (col = l = ref1 = this.tempBoard.boardValues.length - 1; ref1 <= 0 ? l <= 0 : l >= 0; col = ref1 <= 0 ? ++l : --l) {
	          if (this.tempBoard.boardValues[row][col] === ' ') {
	            results1.push((function() {
	              var m, ref2, results2;
	              results2 = [];
	              for (up = m = ref2 = row - 1; ref2 <= 0 ? m <= 0 : m >= 0; up = ref2 <= 0 ? ++m : --m) {
	                if (this.tempBoard.boardValues[up][col] !== ' ') {
	                  this.swapCells(row, col, up, col);
	                  break;
	                } else {
	                  results2.push(void 0);
	                }
	              }
	              return results2;
	            }).call(this));
	          } else {
	            results1.push(void 0);
	          }
	        }
	        return results1;
	      }).call(this));
	    }
	    return results;
	  };
	
	  HashingService.swapCells = function(r1, c1, r2, c2) {
	    var temp;
	    temp = this.tempBoard.boardValues[r1][c1];
	    this.tempBoard.boardValues[r1][c1] = this.tempBoard.boardValues[r2][c2];
	    return this.tempBoard.boardValues[r2][c2] = temp;
	  };
	
	  return HashingService;
	
	})();
	
	module.exports = HashingService;


/***/ },
/* 13 */
/*!***************************************!*\
  !*** ./app/services/HowToPlay.coffee ***!
  \***************************************/
/***/ function(module, exports, __webpack_require__) {

	var $, HowToPlay;
	
	$ = __webpack_require__(/*! jquery */ 2);
	
	HowToPlay = (function() {
	  function HowToPlay() {}
	
	  HowToPlay.createHowToPlay = function(isMobile) {
	    var elemById;
	    elemById = $('#how-to-play');
	    if (isMobile().any() != null) {
	      elemById.append('<b>How To Play:</b> Solve the puzzle by clearing the board. Click adjacent tiles to create an equation, and if it equals an answer, the tiles disappear!');
	    } else {
	      elemById.append('<b>How To Play:</b> Solve the puzzle by clearing the board. Click and drag your mouse across the tiles to create an equation, and if it equals an answer, the tiles disappear!');
	    }
	    elemById.append('<br><br>');
	    elemById.append('<b>Tip:</b> Cells can be selected diagonally.');
	    elemById.append('<br>');
	    elemById.append('<b>Tip:</b> Select multiple number tiles to create a multi-digit number.');
	    return elemById.append('<br><br>');
	  };
	
	  return HowToPlay;
	
	})();
	
	module.exports = HowToPlay;


/***/ },
/* 14 */
/*!*****************************************!*\
  !*** ./app/services/InputSolver.coffee ***!
  \*****************************************/
/***/ function(module, exports) {

	var InputSolver;
	
	InputSolver = (function() {
	  function InputSolver() {}
	
	  InputSolver.parseInput = function(input) {
	    var numberRegex, numbers;
	    numberRegex = /([0-9]+|[\+\-\*])/g;
	    return numbers = input.match(numberRegex);
	  };
	
	  InputSolver.isOperator = function(element) {
	    return element === '+' || element === '-' || element === '*';
	  };
	
	  InputSolver.operation = function(sum, element, op) {
	    if (op === '+') {
	      return sum + parseInt(element);
	    }
	    if (op === '-') {
	      return sum - parseInt(element);
	    }
	    if (op === '*') {
	      return sum * parseInt(element);
	    }
	    return sum;
	  };
	
	  InputSolver.compute = function(input) {
	    var i, len, previous, sum, term, terms;
	    terms = this.parseInput(input);
	    previous = '';
	    sum = parseInt(terms[0]);
	    if (terms[0] === '-') {
	      sum = 0;
	    }
	    if ((isNaN(sum)) && (terms[0] !== '-')) {
	      return NaN;
	    }
	    for (i = 0, len = terms.length; i < len; i++) {
	      term = terms[i];
	      if ((this.isOperator(previous)) && (this.isOperator(term))) {
	        return NaN;
	      }
	      sum = this.operation(sum, term, previous);
	      previous = term;
	    }
	    return sum;
	  };
	
	  return InputSolver;
	
	})();
	
	module.exports = InputSolver;


/***/ },
/* 15 */
/*!*************************************************!*\
  !*** ./app/services/RandomizedFitLength.coffee ***!
  \*************************************************/
/***/ function(module, exports) {

	var RandomizedFitLength;
	
	RandomizedFitLength = (function() {
	  function RandomizedFitLength() {}
	
	  RandomizedFitLength.randInclusive = function(min, max) {
	    return Math.floor(Math.random() * (max - min + 1)) + min;
	  };
	
	  RandomizedFitLength.generate = function(size, list) {
	    var length;
	    if (list == null) {
	      list = [];
	    }
	    if (size === 0) {
	      return list;
	    }
	    length = this.randInclusive(3, 5);
	    if (size - length < 0 && list.length !== 0) {
	      return this.generate(size + list.pop(), list);
	    } else {
	      list.push(length);
	      return this.generate(size - length, list);
	    }
	  };
	
	  return RandomizedFitLength;
	
	})();
	
	module.exports = RandomizedFitLength;


/***/ },
/* 16 */
/*!*****************************************!*\
  !*** ./app/services/ResetButton.coffee ***!
  \*****************************************/
/***/ function(module, exports, __webpack_require__) {

	var $, ResetButton;
	
	$ = __webpack_require__(/*! jquery */ 2);
	
	ResetButton = (function() {
	  function ResetButton() {}
	
	  ResetButton.bindClick = function(board, RunningSum) {
	    return $('#reset-button').click((function(_this) {
	      return function(e) {
	        board.resetBoard();
	        return RunningSum.empty();
	      };
	    })(this));
	  };
	
	  ResetButton.unbindClick = function() {
	    return $('#reset-button').unbind('click');
	  };
	
	  return ResetButton;
	
	})();
	
	module.exports = ResetButton;


/***/ },
/* 17 */
/*!****************************************!*\
  !*** ./app/services/RunningSum.coffee ***!
  \****************************************/
/***/ function(module, exports, __webpack_require__) {

	var $, RunningSum;
	
	$ = __webpack_require__(/*! jquery */ 2);
	
	RunningSum = (function() {
	  function RunningSum() {}
	
	  RunningSum.runningSumElem = $('#running-sum');
	
	  RunningSum.tilesEmptyString = 'Try to get all the tiles off the board!';
	
	  RunningSum.solutionOperatorString = 'Solution must include an operator';
	
	  RunningSum.invalidString = 'Invalid Expression';
	
	  RunningSum.emptyString = '';
	
	  RunningSum.display = function(solution, value) {
	    var expression;
	    if (this.runningSumElem.html() !== this.tilesEmptyString) {
	      if (this.isSpecialString(solution)) {
	        expression = solution;
	      } else if (isNaN(value)) {
	        expression = this.invalidString;
	      } else if (this.isCompleteExpression(solution)) {
	        expression = (this.addParens(solution)) + '=' + value;
	      } else {
	        expression = solution;
	      }
	      return this.runningSumElem.html(this.format(expression));
	    }
	  };
	
	  RunningSum.isSpecialString = function(solution) {
	    var strings;
	    strings = [this.emptyString, this.tilesEmptyString, this.solutionOperatorString];
	    return strings.indexOf(solution) !== -1;
	  };
	
	  RunningSum.isCompleteExpression = function(solution) {
	    return solution.search(/-?\d+[-+\*]\d+/g) === 0;
	  };
	
	  RunningSum.addParens = function(solution) {
	    var char, first, index, lastOpIndex;
	    if (solution.length < 3) {
	      return solution;
	    }
	    lastOpIndex = solution.search(/\d[-+\*]/g) + 1;
	    index = lastOpIndex;
	    while (index < solution.length) {
	      char = solution[index];
	      if (lastOpIndex < index && (char === '+' || char === '-' || char === '*')) {
	        first = '(' + (solution.substring(0, index)) + ')';
	        lastOpIndex = first.length;
	        solution = first + (solution.substring(index));
	      }
	      index++;
	    }
	    return solution;
	  };
	
	  RunningSum.format = function(input) {
	    return input.replace(/\*/g, ' &times; ').replace(/\+/g, ' + ').replace(/(\d+|\))-/g, '$1 - ').replace(/\=/g, ' = ');
	  };
	
	  RunningSum.empty = function() {
	    return this.runningSumElem.html(this.emptyString);
	  };
	
	  return RunningSum;
	
	})();
	
	module.exports = RunningSum;


/***/ },
/* 18 */
/*!**********************************************!*\
  !*** ./app/services/ShareGameService.coffee ***!
  \**********************************************/
/***/ function(module, exports, __webpack_require__) {

	var ShareGameService, TwitterGameService;
	
	TwitterGameService = __webpack_require__(/*! ./TwitterGameService */ 19);
	
	ShareGameService = (function() {
	  function ShareGameService() {}
	
	  ShareGameService.setMessage = function() {
	    return TwitterGameService.setTweet();
	  };
	
	  return ShareGameService;
	
	})();
	
	module.exports = ShareGameService;


/***/ },
/* 19 */
/*!************************************************!*\
  !*** ./app/services/TwitterGameService.coffee ***!
  \************************************************/
/***/ function(module, exports, __webpack_require__) {

	var $, TwitterGameService;
	
	$ = __webpack_require__(/*! jquery */ 2);
	
	TwitterGameService = (function() {
	  function TwitterGameService() {}
	
	  TwitterGameService.setTweet = function() {
	    var possible, text;
	    possible = ['Play MathSwipe with me! Try to beat my score at', 'Play MathSwipe with me! Try to solve my board at', 'Play MathSwipe with me! Solve my puzzle at'];
	    text = possible[Math.floor(Math.random() * 3)];
	    return $('#tweet').attr('data-text', text);
	  };
	
	  return TwitterGameService;
	
	})();
	
	module.exports = TwitterGameService;


/***/ },
/* 20 */
/*!*********************************************!*\
  !*** ./app/services/SolutionService.coffee ***!
  \*********************************************/
/***/ function(module, exports, __webpack_require__) {

	var InputSolver, SolutionService,
	  indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
	
	InputSolver = __webpack_require__(/*! ./InputSolver */ 14);
	
	SolutionService = (function() {
	  function SolutionService(board, goals, RunningSum) {
	    this.board = board;
	    this.RunningSum = RunningSum;
	    this.goals = goals.slice(0);
	  }
	
	  SolutionService.prototype.initialize = function(clickedCells) {
	    this.setSolutionString(clickedCells);
	    return this.value = InputSolver.compute(this.solution);
	  };
	
	  SolutionService.prototype.isSolution = function() {
	    var ref;
	    if (!((this.solution != null) && this.finished && (ref = this.value, indexOf.call(this.goals, ref) >= 0))) {
	      return false;
	    }
	    if (this.isCompleteExpression()) {
	      this.valueIndex = this.goals.indexOf(this.value);
	      this.goals[this.valueIndex] = ' ';
	      return true;
	    } else {
	      this.RunningSum.display(this.RunningSum.solutionOperatorString);
	      return false;
	    }
	  };
	
	  SolutionService.prototype.finished = function() {
	    var ref;
	    return ref = this.solution[this.solution.length - 1], indexOf.call('+-*', ref) < 0;
	  };
	
	  SolutionService.prototype.isCompleteExpression = function() {
	    return this.solution.search(/-?\d+[-+\*]\d+/g) === 0;
	  };
	
	  SolutionService.prototype.setSolutionString = function(cells) {
	    var c, i, len, results;
	    this.solution = '';
	    results = [];
	    for (i = 0, len = cells.length; i < len; i++) {
	      c = cells[i];
	      results.push(this.solution += this.board.boardValues[c.row][c.col]);
	    }
	    return results;
	  };
	
	  return SolutionService;
	
	})();
	
	module.exports = SolutionService;


/***/ },
/* 21 */
/*!***********************************!*\
  !*** ./app/services/Title.coffee ***!
  \***********************************/
/***/ function(module, exports, __webpack_require__) {

	var $, Title;
	
	$ = __webpack_require__(/*! jquery */ 2);
	
	Title = (function() {
	  function Title() {}
	
	  Title.mobileTitle = function() {
	    var elemById;
	    elemById = $('#title');
	    return elemById.css('font-size', '16vw');
	  };
	
	  return Title;
	
	})();
	
	module.exports = Title;


/***/ },
/* 22 */
/*!********************************!*\
  !*** ./app/views/Board.coffee ***!
  \********************************/
/***/ function(module, exports, __webpack_require__) {

	var Board, TrackingService,
	  bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
	
	TrackingService = __webpack_require__(/*! ../services/TrackingService */ 8);
	
	Board = (function() {
	  function Board(boardValues, scene, goals, symbols, goalContainer, isMobile, Cell, Colors, ClickHandler, SolutionService, BoardSolvedService, RunningSum) {
	    this.boardValues = boardValues;
	    this.scene = scene;
	    this.goals = goals;
	    this.symbols = symbols;
	    this.goalContainer = goalContainer;
	    this.isMobile = isMobile;
	    this.Cell = Cell;
	    this.Colors = Colors;
	    this.ClickHandler = ClickHandler;
	    this.SolutionService = SolutionService;
	    this.BoardSolvedService = BoardSolvedService;
	    this.RunningSum = RunningSum;
	    this.successAnimationCallback = bind(this.successAnimationCallback, this);
	    this.createCells = bind(this.createCells, this);
	    this.createEmptyCells = bind(this.createEmptyCells, this);
	    this.createBoard = bind(this.createBoard, this);
	    this.initializer = bind(this.initializer, this);
	    this.dimension = this.boardValues.length;
	    this.initialValues = this.copyValues(this.boardValues);
	    this.initializer();
	  }
	
	  Board.prototype.initializer = function() {
	    var solutionService;
	    solutionService = new this.SolutionService(this, this.goals, this.RunningSum);
	    this.clickHandler = new this.ClickHandler(this, solutionService, this.goalContainer, this.isMobile, this.BoardSolvedService, this.RunningSum);
	    this.createBoard();
	    this.createEmptyCells(this.cellWidth - 5);
	    this.createCells(this.cellWidth);
	    this.getSuccessSVG();
	    this.addedSuccessToScene = false;
	    this.clickHandler.bindDefaultMouseEvents();
	    return this.scene.update();
	  };
	
	  Board.prototype.createBoard = function() {
	    var offset;
	    this.size = this.scene.height * .95;
	    offset = this.size * .025;
	    this.cellWidth = ((this.size - offset) / this.dimension) - offset;
	    this.change = offset + this.cellWidth;
	    this.x = this.scene.width / 2;
	    this.y = this.scene.height / 2;
	    this.y = this.y < this.size / 2 ? this.size / 2 : this.y;
	    this.board = this.scene.makeRectangle(this.x, this.y, this.size, this.size);
	    this.board.noStroke().fill = this.Colors.board;
	    return this.board.visible = true;
	  };
	
	  Board.prototype.createEmptyCells = function(width) {
	    var cell, col, i, ref, results, row;
	    this.empty_cells = [];
	    results = [];
	    for (row = i = 0, ref = this.dimension; 0 <= ref ? i < ref : i > ref; row = 0 <= ref ? ++i : --i) {
	      this.empty_cells.push([]);
	      results.push((function() {
	        var j, ref1, results1;
	        results1 = [];
	        for (col = j = 0, ref1 = this.dimension; 0 <= ref1 ? j < ref1 : j > ref1; col = 0 <= ref1 ? ++j : --j) {
	          cell = new this.Cell(col, row, width, this.scene, this);
	          cell.setColor(this.Colors.emptyCell);
	          cell.setBorder(this.Colors.emptyCellBorder);
	          results1.push(this.empty_cells[row].push(cell));
	        }
	        return results1;
	      }).call(this));
	    }
	    return results;
	  };
	
	  Board.prototype.createCells = function(width) {
	    var cell, col, i, ref, results, row;
	    this.cells = [];
	    results = [];
	    for (row = i = 0, ref = this.dimension; 0 <= ref ? i < ref : i > ref; row = 0 <= ref ? ++i : --i) {
	      this.cells.push([]);
	      results.push((function() {
	        var j, ref1, results1;
	        results1 = [];
	        for (col = j = 0, ref1 = this.dimension; 0 <= ref1 ? j < ref1 : j > ref1; col = 0 <= ref1 ? ++j : --j) {
	          cell = new this.Cell(col, row, width, this.scene, this, this.clickHandler, this.symbols[this.toIdx(this.boardValues[row][col])]);
	          cell.setColor(this.Colors.cell);
	          cell.setBorder(this.Colors.cellBorder);
	          results1.push(this.cells[row].push(cell));
	        }
	        return results1;
	      }).call(this));
	    }
	    return results;
	  };
	
	  Board.prototype.deleteCells = function(solution) {
	    var i, len, tuple;
	    for (i = 0, len = solution.length; i < len; i++) {
	      tuple = solution[i];
	      this.deleteCellAt(tuple.x, tuple.y);
	    }
	    return this.pushAllCellsToBottom();
	  };
	
	  Board.prototype.deleteCellAt = function(x, y) {
	    this.boardValues[y][x] = ' ';
	    return this.cells[y][x]["delete"]();
	  };
	
	  Board.prototype.pushAllCellsToBottom = function() {
	    var col, i, j, k, ref, ref1, ref2, row, up;
	    for (row = i = ref = this.dimension - 1; ref <= 1 ? i <= 1 : i >= 1; row = ref <= 1 ? ++i : --i) {
	      for (col = j = ref1 = this.dimension - 1; ref1 <= 0 ? j <= 0 : j >= 0; col = ref1 <= 0 ? ++j : --j) {
	        if (this.cells[row][col].isDeleted) {
	          for (up = k = ref2 = row - 1; ref2 <= 0 ? k <= 0 : k >= 0; up = ref2 <= 0 ? ++k : --k) {
	            if (!this.cells[up][col].isDeleted) {
	              this.swapCells(row, col, up, col);
	              break;
	            }
	          }
	        }
	      }
	    }
	    return this.scene.update();
	  };
	
	  Board.prototype.swapCells = function(r1, c1, r2, c2) {
	    var temp;
	    this.cells[r1][c1].shiftTo(r2, c2);
	    this.cells[r2][c2].shiftTo(r1, c1);
	    temp = this.cells[r1][c1];
	    this.cells[r1][c1] = this.cells[r2][c2];
	    this.cells[r2][c2] = temp;
	    temp = this.boardValues[r1][c1];
	    this.boardValues[r1][c1] = this.boardValues[r2][c2];
	    return this.boardValues[r2][c2] = temp;
	  };
	
	  Board.prototype.toIdx = function(val) {
	    if (val.length !== 1) {
	      return null;
	    }
	    switch (val) {
	      case '+':
	        return 10;
	      case '-':
	        return 11;
	      case '*':
	        return 12;
	      default:
	        return parseInt(val);
	    }
	  };
	
	  Board.prototype.copyValues = function(source) {
	    var col, dest, i, j, ref, ref1, row;
	    dest = [];
	    for (row = i = 0, ref = this.dimension; 0 <= ref ? i < ref : i > ref; row = 0 <= ref ? ++i : --i) {
	      dest.push([]);
	      for (col = j = 0, ref1 = this.dimension; 0 <= ref1 ? j < ref1 : j > ref1; col = 0 <= ref1 ? ++j : --j) {
	        dest[row].push(source[row][col]);
	      }
	    }
	    return dest;
	  };
	
	  Board.prototype.resetBoard = function() {
	    TrackingService.boardEvent('reset');
	    this.boardValues = this.copyValues(this.initialValues);
	    this.goalContainer.resetGoals();
	    return this.initializer();
	  };
	
	  Board.prototype.getSuccessSVG = function() {
	    this.successSVG = this.symbols[this.symbols.length - 1].clone();
	    return this.successSVG.noStroke().fill = '#D1857F';
	  };
	
	  Board.prototype.successAnimation = function() {
	    if (!this.addedSuccessToScene) {
	      this.scene.add(this.successSVG);
	      this.addedSuccessToScene = true;
	    }
	    this.successSVG.rotation = this.successSVG.scale = 0;
	    this.successSVG.translation.set(this.scene.width / 2, this.scene.width / 2);
	    this.delta = 0.027;
	    this.scene.unbind('update', this.successAnimationCallback);
	    return this.scene.bind('update', this.successAnimationCallback);
	  };
	
	  Board.prototype.successAnimationCallback = function(frameCount) {
	    this.delta = Math.max(0.0005, (1.0 - this.successSVG.scale) * 0.07);
	    if (this.successSVG.rotation >= Math.PI * 4) {
	      this.scene.unbind('update', this.successAnimationCallback);
	      this.scene.scale = 1;
	      return this.successSVG.rotation = 0;
	    } else {
	      this.successSVG.scale += this.delta;
	      return this.successSVG.rotation += this.delta * Math.PI * 4;
	    }
	  };
	
	  return Board;
	
	})();
	
	module.exports = Board;


/***/ },
/* 23 */
/*!*******************************!*\
  !*** ./app/views/Cell.coffee ***!
  \*******************************/
/***/ function(module, exports, __webpack_require__) {

	var $, Cell, Colors;
	
	$ = __webpack_require__(/*! jquery */ 2);
	
	Colors = __webpack_require__(/*! ./Colors */ 24);
	
	Cell = (function() {
	  function Cell(col1, row1, size, scene, board, clickHandler, symbolBlueprint) {
	    var hitboxSize;
	    this.col = col1;
	    this.row = row1;
	    this.size = size;
	    this.scene = scene;
	    this.board = board;
	    this.clickHandler = clickHandler;
	    this.isDeleted = this.isSelected = false;
	    this.rect = this.scene.makeRectangle(this.getX(), this.getY(), this.size, this.size);
	    if (!((symbolBlueprint != null) && (this.clickHandler != null))) {
	      this.cell = this.rect;
	      this.scene.update();
	      return;
	    }
	    hitboxSize = 0.7 * this.size;
	    this.hitbox = this.scene.makeRectangle(this.getX(), this.getY(), hitboxSize, hitboxSize);
	    this.hitbox.noStroke();
	    this.cloneSymbol(symbolBlueprint);
	    this.hitboxGroup = this.scene.makeGroup(this.hitbox, this.symbol);
	    this.cell = this.scene.makeGroup(this.rect, this.hitboxGroup);
	    this.scene.update();
	    if (!this.clickHandler.isOnMobile()) {
	      this.bindMouseOver();
	      this.bindMouseUp();
	      this.bindMouseDown();
	    } else {
	      this.bindClick();
	    }
	  }
	
	  Cell.prototype.cloneSymbol = function(blueprint) {
	    var offset;
	    offset = -this.size * 4 / 10;
	    this.symbol = blueprint.clone();
	    this.symbol.translation.set(this.getX() + offset, this.getY() + offset);
	    this.symbol.scale = (this.size / 100) * 0.4;
	    return this.symbol.noStroke().fill = Colors.symbol;
	  };
	
	  Cell.prototype.setColor = function(c) {
	    this.color = c;
	    this.rect.fill = c;
	    if (this.hitbox != null) {
	      this.hitbox.fill = c;
	    }
	    return this.scene.update();
	  };
	
	  Cell.prototype.setBorder = function(c) {
	    this.rect.stroke = c;
	    this.rect.linewidth = 6;
	    return this.scene.update();
	  };
	
	  Cell.prototype.hide = function() {
	    this.cell.visible = false;
	    return this.scene.update();
	  };
	
	  Cell.prototype.getX = function(col) {
	    if (col == null) {
	      col = this.col;
	    }
	    return this.board.x - (this.board.size + this.size) / 2 + (col + 1) * this.board.change;
	  };
	
	  Cell.prototype.getY = function(row) {
	    if (row == null) {
	      row = this.row;
	    }
	    return this.board.y - (this.board.size + this.size) / 2 + (row + 1) * this.board.change;
	  };
	
	  Cell.prototype.setIndices = function(row, col) {
	    if ((row != null) && (col != null)) {
	      this.row = row;
	      return this.col = col;
	    }
	  };
	
	  Cell.prototype.shiftTo = function(row, col) {
	    var end, goingDown, start;
	    end = new Two.Vector(this.getX(col), this.getY(row));
	    start = new Two.Vector(this.getX(), this.getY());
	    goingDown = end.y > start.y;
	    this.scene.bind('update', (function(_this) {
	      return function(frameCount) {
	        var delta, dist;
	        dist = start.distanceTo(end);
	        if (dist < .00001) {
	          _this.cell.translation.clone(end);
	          _this.scene.unbind('update');
	        }
	        delta = new Two.Vector(0, dist * .125);
	        if (goingDown) {
	          _this.cell.translation.addSelf(delta);
	          return start = start.addSelf(delta);
	        } else {
	          _this.cell.translation.subSelf(delta);
	          return start = start.subSelf(delta);
	        }
	      };
	    })(this)).play();
	    return this.setIndices(row, col);
	  };
	
	  Cell.prototype.bindClick = function() {
	    return $('#' + this.hitboxGroup.id).click((function(_this) {
	      return function(e) {
	        e.preventDefault();
	        e.stopPropagation();
	        if (_this.isDeleted) {
	          return;
	        }
	        if (!_this.isSelected) {
	          return _this.clickHandler.onSelect(_this);
	        } else {
	          return _this.clickHandler.onUnselect(_this);
	        }
	      };
	    })(this));
	  };
	
	  Cell.prototype.bindMouseOver = function() {
	    return $('#' + this.hitboxGroup.id).mouseover((function(_this) {
	      return function(e) {
	        e.preventDefault();
	        e.stopPropagation();
	        if (_this.isDeleted) {
	          return;
	        }
	        if (!_this.isSelected && _this.clickHandler.isMouseDown()) {
	          return _this.clickHandler.onSelect(_this);
	        }
	      };
	    })(this));
	  };
	
	  Cell.prototype.bindMouseUp = function() {
	    return $('#' + this.hitboxGroup.id).mouseup((function(_this) {
	      return function(e) {
	        e.preventDefault();
	        e.stopPropagation();
	        return _this.clickHandler.setMouseAsUp();
	      };
	    })(this));
	  };
	
	  Cell.prototype.bindMouseDown = function() {
	    return $('#' + this.hitboxGroup.id).mousedown((function(_this) {
	      return function(e) {
	        e.preventDefault();
	        e.stopPropagation();
	        if (_this.isDeleted) {
	          return;
	        }
	        if (!_this.isSelected) {
	          return _this.clickHandler.onSelect(_this);
	        }
	      };
	    })(this));
	  };
	
	  Cell.prototype.select = function() {
	    this.isSelected = true;
	    return this.setColor(Colors.select);
	  };
	
	  Cell.prototype.unselect = function() {
	    this.isSelected = false;
	    return this.setColor(Colors.cell);
	  };
	
	  Cell.prototype["delete"] = function() {
	    this.hide();
	    return this.isDeleted = true;
	  };
	
	  Cell.prototype.x = function() {
	    return this.col;
	  };
	
	  Cell.prototype.y = function() {
	    return this.row;
	  };
	
	  return Cell;
	
	})();
	
	module.exports = Cell;


/***/ },
/* 24 */
/*!*********************************!*\
  !*** ./app/views/Colors.coffee ***!
  \*********************************/
/***/ function(module, exports) {

	var Colors;
	
	Colors = {
	  cell: '#EFE8BE',
	  cellBorder: '#41565c',
	  emptyCell: '#41565c',
	  emptyCellBorder: '#41565c',
	  board: '#294248',
	  select: '#c7a579',
	  symbol: 'black',
	  deletedGoalGrey: 'rgb(47, 79, 79)'
	};
	
	module.exports = Colors;


/***/ },
/* 25 */
/*!****************************************!*\
  !*** ./app/views/GoalContainer.coffee ***!
  \****************************************/
/***/ function(module, exports, __webpack_require__) {

	var $, GoalContainer;
	
	$ = __webpack_require__(/*! jquery */ 2);
	
	GoalContainer = (function() {
	  function GoalContainer(inputs, Colors) {
	    var goal, i, len, ref;
	    this.inputs = inputs;
	    this.Colors = Colors;
	    this.container = $('#goals');
	    ref = this.inputs;
	    for (i = 0, len = ref.length; i < len; i++) {
	      goal = ref[i];
	      this.container.append('<span class="goal-span">' + goal + '</span>');
	    }
	  }
	
	  GoalContainer.prototype.deleteGoal = function(idx) {
	    return $(this.container.children()[idx]).css('color', this.Colors.deletedGoalGrey);
	  };
	
	  GoalContainer.prototype.resetGoals = function() {
	    return $(this.container.children()).css('color', this.Colors.cell);
	  };
	
	  GoalContainer.prototype.clearGoals = function() {
	    return this.container.empty();
	  };
	
	  GoalContainer.prototype.isEmpty = function() {
	    var goal, i, len, ref;
	    ref = $(this.container.children());
	    for (i = 0, len = ref.length; i < len; i++) {
	      goal = ref[i];
	      if ($(goal).css('color') !== this.Colors.deletedGoalGrey) {
	        return false;
	      }
	    }
	    return true;
	  };
	
	  return GoalContainer;
	
	})();
	
	module.exports = GoalContainer;


/***/ },
/* 26 */
/*!***********************************************!*\
  !*** ./tests/controllers/GeneralTests.coffee ***!
  \***********************************************/
/***/ function(module, exports, __webpack_require__) {

	var AdjacentCellsCalculator, DFS, ExpressionGenerator, GeneralTests, InputSolver, RandomizedFitLength, Tuple;
	
	AdjacentCellsCalculator = __webpack_require__(/*! ../../app/services/AdjacentCellsCalculator */ 4);
	
	DFS = __webpack_require__(/*! ../../app/services/DFS */ 9);
	
	ExpressionGenerator = __webpack_require__(/*! ../../app/services/ExpressionGenerator */ 11);
	
	InputSolver = __webpack_require__(/*! ../../app/services/InputSolver */ 14);
	
	RandomizedFitLength = __webpack_require__(/*! ../../app/services/RandomizedFitLength */ 15);
	
	Tuple = __webpack_require__(/*! ../../app/models/Tuple */ 5);
	
	GeneralTests = (function() {
	  function GeneralTests() {}
	
	  GeneralTests.tests = function(board) {
	    this.testRandomizedFitLength();
	    this.testExpGen();
	    this.testCellDelete(board);
	    this.testInputSolver();
	    return this.testDFS();
	  };
	
	  GeneralTests.testRandomizedFitLength = function() {
	    var list, size;
	    console.log('Testing RandomizedFitLength');
	    size = 25;
	    list = RandomizedFitLength.generate(size);
	    console.log(list);
	    return console.log('Passed RandomizedFitLength\n\n');
	  };
	
	  GeneralTests.testExpGen = function() {
	    var expression, j, length;
	    console.log('Testing ExpressionGenerator');
	    for (length = j = 1; j <= 10; length = ++j) {
	      expression = ExpressionGenerator.generate(length);
	      console.log(length, expression, InputSolver.compute(expression));
	    }
	    return console.log('Passed ExpressionGenerator\n\n');
	  };
	
	  GeneralTests.testCellDelete = function(board) {
	    var solution;
	    console.log('Testing Cell Delete');
	    solution = [new Tuple(0, 0), new Tuple(1, 1), new Tuple(0, 2)];
	    board.deleteCells(solution);
	    return console.log('Passed Cell Delete\n\n');
	  };
	
	  GeneralTests.testInputSolver = function() {
	    console.log('Testing Input Solver');
	    console.log('1+2*3 =', InputSolver.compute('1+2*3'));
	    return console.log('Passed Input Solver\n\n');
	  };
	
	  GeneralTests.testDFS = function() {
	    var char, expression, i, inputList, j, k, l, len, len1, len2, length, line, m, ref, ref1, row;
	    console.log('Testing DFS');
	    length = 5;
	    inputList = [];
	    for (i = j = 0, ref = length; 0 <= ref ? j < ref : j > ref; i = 0 <= ref ? ++j : --j) {
	      inputList.push((ExpressionGenerator.generate(length)).split(''));
	    }
	    console.log('Expressions are:');
	    for (k = 0, len = inputList.length; k < len; k++) {
	      expression = inputList[k];
	      console.log(expression);
	    }
	    console.log('\n');
	    ref1 = DFS.setEquationsOnGrid(length, inputList, AdjacentCellsCalculator);
	    for (l = 0, len1 = ref1.length; l < len1; l++) {
	      row = ref1[l];
	      line = '';
	      for (m = 0, len2 = row.length; m < len2; m++) {
	        char = row[m];
	        line += char + '\t';
	      }
	      console.log(line);
	    }
	    return console.log('Passed DFS\n\n');
	  };
	
	  return GeneralTests;
	
	})();
	
	module.exports = GeneralTests;


/***/ },
/* 27 */
/*!*******************************!*\
  !*** ./~/two.js/build/two.js ***!
  \*******************************/
/***/ function(module, exports, __webpack_require__) {

	var __WEBPACK_AMD_DEFINE_RESULT__;/**
	 * two.js
	 * a two-dimensional drawing api meant for modern browsers. It is renderer 
	 * agnostic enabling the same api for rendering in multiple contexts: webgl, 
	 * canvas2d, and svg.
	 *
	 * Copyright (c) 2012 - 2013 jonobr1 / http://jonobr1.com
	 *
	 * Permission is hereby granted, free of charge, to any person obtaining a copy
	 * of this software and associated documentation files (the "Software"), to deal
	 * in the Software without restriction, including without limitation the rights
	 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	 * copies of the Software, and to permit persons to whom the Software is
	 * furnished to do so, subject to the following conditions:
	 *
	 * The above copyright notice and this permission notice shall be included in
	 * all copies or substantial portions of the Software.
	 *
	 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	 * THE SOFTWARE.
	 *
	 */
	
	
	//     Underscore.js 1.5.1
	//     http://underscorejs.org
	//     (c) 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
	//     Underscore may be freely distributed under the MIT license.
	
	(function() {
	
	  // Baseline setup
	  // --------------
	
	  // Establish the root object, `window` in the browser, or `global` on the server.
	  var root = this;
	
	  // Save the previous value of the `_` variable.
	  var previousUnderscore = root._;
	
	  // Establish the object that gets returned to break out of a loop iteration.
	  var breaker = {};
	
	  // Save bytes in the minified (but not gzipped) version:
	  var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype;
	
	  // Create quick reference variables for speed access to core prototypes.
	  var
	    push             = ArrayProto.push,
	    slice            = ArrayProto.slice,
	    concat           = ArrayProto.concat,
	    toString         = ObjProto.toString,
	    hasOwnProperty   = ObjProto.hasOwnProperty;
	
	  // All **ECMAScript 5** native function implementations that we hope to use
	  // are declared here.
	  var
	    nativeForEach      = ArrayProto.forEach,
	    nativeMap          = ArrayProto.map,
	    nativeReduce       = ArrayProto.reduce,
	    nativeReduceRight  = ArrayProto.reduceRight,
	    nativeFilter       = ArrayProto.filter,
	    nativeEvery        = ArrayProto.every,
	    nativeSome         = ArrayProto.some,
	    nativeIndexOf      = ArrayProto.indexOf,
	    nativeLastIndexOf  = ArrayProto.lastIndexOf,
	    nativeIsArray      = Array.isArray,
	    nativeKeys         = Object.keys,
	    nativeBind         = FuncProto.bind;
	
	  // Create a safe reference to the Underscore object for use below.
	  var _ = function(obj) {
	    if (obj instanceof _) return obj;
	    if (!(this instanceof _)) return new _(obj);
	    this._wrapped = obj;
	  };
	
	  // Export the Underscore object for **Node.js**, with
	  // backwards-compatibility for the old `require()` API. If we're in
	  // the browser, add `_` as a global object via a string identifier,
	  // for Closure Compiler "advanced" mode.
	  if (true) {
	    if (typeof module !== 'undefined' && module.exports) {
	      exports = module.exports = _;
	    }
	    exports._ = _;
	  } else {
	    root._ = _;
	  }
	
	  // Current version.
	  _.VERSION = '1.5.1';
	
	  // Collection Functions
	  // --------------------
	
	  // The cornerstone, an `each` implementation, aka `forEach`.
	  // Handles objects with the built-in `forEach`, arrays, and raw objects.
	  // Delegates to **ECMAScript 5**'s native `forEach` if available.
	  var each = _.each = _.forEach = function(obj, iterator, context) {
	    if (obj == null) return;
	    if (nativeForEach && obj.forEach === nativeForEach) {
	      obj.forEach(iterator, context);
	    } else if (obj.length === +obj.length) {
	      for (var i = 0, l = obj.length; i < l; i++) {
	        if (iterator.call(context, obj[i], i, obj) === breaker) return;
	      }
	    } else {
	      for (var key in obj) {
	        if (_.has(obj, key)) {
	          if (iterator.call(context, obj[key], key, obj) === breaker) return;
	        }
	      }
	    }
	  };
	
	  // Return the results of applying the iterator to each element.
	  // Delegates to **ECMAScript 5**'s native `map` if available.
	  _.map = _.collect = function(obj, iterator, context) {
	    var results = [];
	    if (obj == null) return results;
	    if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context);
	    each(obj, function(value, index, list) {
	      results.push(iterator.call(context, value, index, list));
	    });
	    return results;
	  };
	
	  var reduceError = 'Reduce of empty array with no initial value';
	
	  // **Reduce** builds up a single result from a list of values, aka `inject`,
	  // or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available.
	  _.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {
	    var initial = arguments.length > 2;
	    if (obj == null) obj = [];
	    if (nativeReduce && obj.reduce === nativeReduce) {
	      if (context) iterator = _.bind(iterator, context);
	      return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator);
	    }
	    each(obj, function(value, index, list) {
	      if (!initial) {
	        memo = value;
	        initial = true;
	      } else {
	        memo = iterator.call(context, memo, value, index, list);
	      }
	    });
	    if (!initial) throw new TypeError(reduceError);
	    return memo;
	  };
	
	  // The right-associative version of reduce, also known as `foldr`.
	  // Delegates to **ECMAScript 5**'s native `reduceRight` if available.
	  _.reduceRight = _.foldr = function(obj, iterator, memo, context) {
	    var initial = arguments.length > 2;
	    if (obj == null) obj = [];
	    if (nativeReduceRight && obj.reduceRight === nativeReduceRight) {
	      if (context) iterator = _.bind(iterator, context);
	      return initial ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
	    }
	    var length = obj.length;
	    if (length !== +length) {
	      var keys = _.keys(obj);
	      length = keys.length;
	    }
	    each(obj, function(value, index, list) {
	      index = keys ? keys[--length] : --length;
	      if (!initial) {
	        memo = obj[index];
	        initial = true;
	      } else {
	        memo = iterator.call(context, memo, obj[index], index, list);
	      }
	    });
	    if (!initial) throw new TypeError(reduceError);
	    return memo;
	  };
	
	  // Return the first value which passes a truth test. Aliased as `detect`.
	  _.find = _.detect = function(obj, iterator, context) {
	    var result;
	    any(obj, function(value, index, list) {
	      if (iterator.call(context, value, index, list)) {
	        result = value;
	        return true;
	      }
	    });
	    return result;
	  };
	
	  // Return all the elements that pass a truth test.
	  // Delegates to **ECMAScript 5**'s native `filter` if available.
	  // Aliased as `select`.
	  _.filter = _.select = function(obj, iterator, context) {
	    var results = [];
	    if (obj == null) return results;
	    if (nativeFilter && obj.filter === nativeFilter) return obj.filter(iterator, context);
	    each(obj, function(value, index, list) {
	      if (iterator.call(context, value, index, list)) results.push(value);
	    });
	    return results;
	  };
	
	  // Return all the elements for which a truth test fails.
	  _.reject = function(obj, iterator, context) {
	    return _.filter(obj, function(value, index, list) {
	      return !iterator.call(context, value, index, list);
	    }, context);
	  };
	
	  // Determine whether all of the elements match a truth test.
	  // Delegates to **ECMAScript 5**'s native `every` if available.
	  // Aliased as `all`.
	  _.every = _.all = function(obj, iterator, context) {
	    iterator || (iterator = _.identity);
	    var result = true;
	    if (obj == null) return result;
	    if (nativeEvery && obj.every === nativeEvery) return obj.every(iterator, context);
	    each(obj, function(value, index, list) {
	      if (!(result = result && iterator.call(context, value, index, list))) return breaker;
	    });
	    return !!result;
	  };
	
	  // Determine if at least one element in the object matches a truth test.
	  // Delegates to **ECMAScript 5**'s native `some` if available.
	  // Aliased as `any`.
	  var any = _.some = _.any = function(obj, iterator, context) {
	    iterator || (iterator = _.identity);
	    var result = false;
	    if (obj == null) return result;
	    if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context);
	    each(obj, function(value, index, list) {
	      if (result || (result = iterator.call(context, value, index, list))) return breaker;
	    });
	    return !!result;
	  };
	
	  // Determine if the array or object contains a given value (using `===`).
	  // Aliased as `include`.
	  _.contains = _.include = function(obj, target) {
	    if (obj == null) return false;
	    if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1;
	    return any(obj, function(value) {
	      return value === target;
	    });
	  };
	
	  // Invoke a method (with arguments) on every item in a collection.
	  _.invoke = function(obj, method) {
	    var args = slice.call(arguments, 2);
	    var isFunc = _.isFunction(method);
	    return _.map(obj, function(value) {
	      return (isFunc ? method : value[method]).apply(value, args);
	    });
	  };
	
	  // Convenience version of a common use case of `map`: fetching a property.
	  _.pluck = function(obj, key) {
	    return _.map(obj, function(value){ return value[key]; });
	  };
	
	  // Convenience version of a common use case of `filter`: selecting only objects
	  // containing specific `key:value` pairs.
	  _.where = function(obj, attrs, first) {
	    if (_.isEmpty(attrs)) return first ? void 0 : [];
	    return _[first ? 'find' : 'filter'](obj, function(value) {
	      for (var key in attrs) {
	        if (attrs[key] !== value[key]) return false;
	      }
	      return true;
	    });
	  };
	
	  // Convenience version of a common use case of `find`: getting the first object
	  // containing specific `key:value` pairs.
	  _.findWhere = function(obj, attrs) {
	    return _.where(obj, attrs, true);
	  };
	
	  // Return the maximum element or (element-based computation).
	  // Can't optimize arrays of integers longer than 65,535 elements.
	  // See [WebKit Bug 80797](https://bugs.webkit.org/show_bug.cgi?id=80797)
	  _.max = function(obj, iterator, context) {
	    if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {
	      return Math.max.apply(Math, obj);
	    }
	    if (!iterator && _.isEmpty(obj)) return -Infinity;
	    var result = {computed : -Infinity, value: -Infinity};
	    each(obj, function(value, index, list) {
	      var computed = iterator ? iterator.call(context, value, index, list) : value;
	      computed > result.computed && (result = {value : value, computed : computed});
	    });
	    return result.value;
	  };
	
	  // Return the minimum element (or element-based computation).
	  _.min = function(obj, iterator, context) {
	    if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {
	      return Math.min.apply(Math, obj);
	    }
	    if (!iterator && _.isEmpty(obj)) return Infinity;
	    var result = {computed : Infinity, value: Infinity};
	    each(obj, function(value, index, list) {
	      var computed = iterator ? iterator.call(context, value, index, list) : value;
	      computed < result.computed && (result = {value : value, computed : computed});
	    });
	    return result.value;
	  };
	
	  // Shuffle an array.
	  _.shuffle = function(obj) {
	    var rand;
	    var index = 0;
	    var shuffled = [];
	    each(obj, function(value) {
	      rand = _.random(index++);
	      shuffled[index - 1] = shuffled[rand];
	      shuffled[rand] = value;
	    });
	    return shuffled;
	  };
	
	  // An internal function to generate lookup iterators.
	  var lookupIterator = function(value) {
	    return _.isFunction(value) ? value : function(obj){ return obj[value]; };
	  };
	
	  // Sort the object's values by a criterion produced by an iterator.
	  _.sortBy = function(obj, value, context) {
	    var iterator = lookupIterator(value);
	    return _.pluck(_.map(obj, function(value, index, list) {
	      return {
	        value : value,
	        index : index,
	        criteria : iterator.call(context, value, index, list)
	      };
	    }).sort(function(left, right) {
	      var a = left.criteria;
	      var b = right.criteria;
	      if (a !== b) {
	        if (a > b || a === void 0) return 1;
	        if (a < b || b === void 0) return -1;
	      }
	      return left.index < right.index ? -1 : 1;
	    }), 'value');
	  };
	
	  // An internal function used for aggregate "group by" operations.
	  var group = function(obj, value, context, behavior) {
	    var result = {};
	    var iterator = lookupIterator(value == null ? _.identity : value);
	    each(obj, function(value, index) {
	      var key = iterator.call(context, value, index, obj);
	      behavior(result, key, value);
	    });
	    return result;
	  };
	
	  // Groups the object's values by a criterion. Pass either a string attribute
	  // to group by, or a function that returns the criterion.
	  _.groupBy = function(obj, value, context) {
	    return group(obj, value, context, function(result, key, value) {
	      (_.has(result, key) ? result[key] : (result[key] = [])).push(value);
	    });
	  };
	
	  // Counts instances of an object that group by a certain criterion. Pass
	  // either a string attribute to count by, or a function that returns the
	  // criterion.
	  _.countBy = function(obj, value, context) {
	    return group(obj, value, context, function(result, key) {
	      if (!_.has(result, key)) result[key] = 0;
	      result[key]++;
	    });
	  };
	
	  // Use a comparator function to figure out the smallest index at which
	  // an object should be inserted so as to maintain order. Uses binary search.
	  _.sortedIndex = function(array, obj, iterator, context) {
	    iterator = iterator == null ? _.identity : lookupIterator(iterator);
	    var value = iterator.call(context, obj);
	    var low = 0, high = array.length;
	    while (low < high) {
	      var mid = (low + high) >>> 1;
	      iterator.call(context, array[mid]) < value ? low = mid + 1 : high = mid;
	    }
	    return low;
	  };
	
	  // Safely create a real, live array from anything iterable.
	  _.toArray = function(obj) {
	    if (!obj) return [];
	    if (_.isArray(obj)) return slice.call(obj);
	    if (obj.length === +obj.length) return _.map(obj, _.identity);
	    return _.values(obj);
	  };
	
	  // Return the number of elements in an object.
	  _.size = function(obj) {
	    if (obj == null) return 0;
	    return (obj.length === +obj.length) ? obj.length : _.keys(obj).length;
	  };
	
	  // Array Functions
	  // ---------------
	
	  // Get the first element of an array. Passing **n** will return the first N
	  // values in the array. Aliased as `head` and `take`. The **guard** check
	  // allows it to work with `_.map`.
	  _.first = _.head = _.take = function(array, n, guard) {
	    if (array == null) return void 0;
	    return (n != null) && !guard ? slice.call(array, 0, n) : array[0];
	  };
	
	  // Returns everything but the last entry of the array. Especially useful on
	  // the arguments object. Passing **n** will return all the values in
	  // the array, excluding the last N. The **guard** check allows it to work with
	  // `_.map`.
	  _.initial = function(array, n, guard) {
	    return slice.call(array, 0, array.length - ((n == null) || guard ? 1 : n));
	  };
	
	  // Get the last element of an array. Passing **n** will return the last N
	  // values in the array. The **guard** check allows it to work with `_.map`.
	  _.last = function(array, n, guard) {
	    if (array == null) return void 0;
	    if ((n != null) && !guard) {
	      return slice.call(array, Math.max(array.length - n, 0));
	    } else {
	      return array[array.length - 1];
	    }
	  };
	
	  // Returns everything but the first entry of the array. Aliased as `tail` and `drop`.
	  // Especially useful on the arguments object. Passing an **n** will return
	  // the rest N values in the array. The **guard**
	  // check allows it to work with `_.map`.
	  _.rest = _.tail = _.drop = function(array, n, guard) {
	    return slice.call(array, (n == null) || guard ? 1 : n);
	  };
	
	  // Trim out all falsy values from an array.
	  _.compact = function(array) {
	    return _.filter(array, _.identity);
	  };
	
	  // Internal implementation of a recursive `flatten` function.
	  var flatten = function(input, shallow, output) {
	    if (shallow && _.every(input, _.isArray)) {
	      return concat.apply(output, input);
	    }
	    each(input, function(value) {
	      if (_.isArray(value) || _.isArguments(value)) {
	        shallow ? push.apply(output, value) : flatten(value, shallow, output);
	      } else {
	        output.push(value);
	      }
	    });
	    return output;
	  };
	
	  // Return a completely flattened version of an array.
	  _.flatten = function(array, shallow) {
	    return flatten(array, shallow, []);
	  };
	
	  // Return a version of the array that does not contain the specified value(s).
	  _.without = function(array) {
	    return _.difference(array, slice.call(arguments, 1));
	  };
	
	  // Produce a duplicate-free version of the array. If the array has already
	  // been sorted, you have the option of using a faster algorithm.
	  // Aliased as `unique`.
	  _.uniq = _.unique = function(array, isSorted, iterator, context) {
	    if (_.isFunction(isSorted)) {
	      context = iterator;
	      iterator = isSorted;
	      isSorted = false;
	    }
	    var initial = iterator ? _.map(array, iterator, context) : array;
	    var results = [];
	    var seen = [];
	    each(initial, function(value, index) {
	      if (isSorted ? (!index || seen[seen.length - 1] !== value) : !_.contains(seen, value)) {
	        seen.push(value);
	        results.push(array[index]);
	      }
	    });
	    return results;
	  };
	
	  // Produce an array that contains the union: each distinct element from all of
	  // the passed-in arrays.
	  _.union = function() {
	    return _.uniq(_.flatten(arguments, true));
	  };
	
	  // Produce an array that contains every item shared between all the
	  // passed-in arrays.
	  _.intersection = function(array) {
	    var rest = slice.call(arguments, 1);
	    return _.filter(_.uniq(array), function(item) {
	      return _.every(rest, function(other) {
	        return _.indexOf(other, item) >= 0;
	      });
	    });
	  };
	
	  // Take the difference between one array and a number of other arrays.
	  // Only the elements present in just the first array will remain.
	  _.difference = function(array) {
	    var rest = concat.apply(ArrayProto, slice.call(arguments, 1));
	    return _.filter(array, function(value){ return !_.contains(rest, value); });
	  };
	
	  // Zip together multiple lists into a single array -- elements that share
	  // an index go together.
	  _.zip = function() {
	    var length = _.max(_.pluck(arguments, "length").concat(0));
	    var results = new Array(length);
	    for (var i = 0; i < length; i++) {
	      results[i] = _.pluck(arguments, '' + i);
	    }
	    return results;
	  };
	
	  // Converts lists into objects. Pass either a single array of `[key, value]`
	  // pairs, or two parallel arrays of the same length -- one of keys, and one of
	  // the corresponding values.
	  _.object = function(list, values) {
	    if (list == null) return {};
	    var result = {};
	    for (var i = 0, l = list.length; i < l; i++) {
	      if (values) {
	        result[list[i]] = values[i];
	      } else {
	        result[list[i][0]] = list[i][1];
	      }
	    }
	    return result;
	  };
	
	  // If the browser doesn't supply us with indexOf (I'm looking at you, **MSIE**),
	  // we need this function. Return the position of the first occurrence of an
	  // item in an array, or -1 if the item is not included in the array.
	  // Delegates to **ECMAScript 5**'s native `indexOf` if available.
	  // If the array is large and already in sort order, pass `true`
	  // for **isSorted** to use binary search.
	  _.indexOf = function(array, item, isSorted) {
	    if (array == null) return -1;
	    var i = 0, l = array.length;
	    if (isSorted) {
	      if (typeof isSorted == 'number') {
	        i = (isSorted < 0 ? Math.max(0, l + isSorted) : isSorted);
	      } else {
	        i = _.sortedIndex(array, item);
	        return array[i] === item ? i : -1;
	      }
	    }
	    if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item, isSorted);
	    for (; i < l; i++) if (array[i] === item) return i;
	    return -1;
	  };
	
	  // Delegates to **ECMAScript 5**'s native `lastIndexOf` if available.
	  _.lastIndexOf = function(array, item, from) {
	    if (array == null) return -1;
	    var hasIndex = from != null;
	    if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) {
	      return hasIndex ? array.lastIndexOf(item, from) : array.lastIndexOf(item);
	    }
	    var i = (hasIndex ? from : array.length);
	    while (i--) if (array[i] === item) return i;
	    return -1;
	  };
	
	  // Generate an integer Array containing an arithmetic progression. A port of
	  // the native Python `range()` function. See
	  // [the Python documentation](http://docs.python.org/library/functions.html#range).
	  _.range = function(start, stop, step) {
	    if (arguments.length <= 1) {
	      stop = start || 0;
	      start = 0;
	    }
	    step = arguments[2] || 1;
	
	    var len = Math.max(Math.ceil((stop - start) / step), 0);
	    var idx = 0;
	    var range = new Array(len);
	
	    while(idx < len) {
	      range[idx++] = start;
	      start += step;
	    }
	
	    return range;
	  };
	
	  // Function (ahem) Functions
	  // ------------------
	
	  // Reusable constructor function for prototype setting.
	  var ctor = function(){};
	
	  // Create a function bound to a given object (assigning `this`, and arguments,
	  // optionally). Delegates to **ECMAScript 5**'s native `Function.bind` if
	  // available.
	  _.bind = function(func, context) {
	    var args, bound;
	    if (nativeBind && func.bind === nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));
	    if (!_.isFunction(func)) throw new TypeError;
	    args = slice.call(arguments, 2);
	    return bound = function() {
	      if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments)));
	      ctor.prototype = func.prototype;
	      var self = new ctor;
	      ctor.prototype = null;
	      var result = func.apply(self, args.concat(slice.call(arguments)));
	      if (Object(result) === result) return result;
	      return self;
	    };
	  };
	
	  // Partially apply a function by creating a version that has had some of its
	  // arguments pre-filled, without changing its dynamic `this` context.
	  _.partial = function(func) {
	    var args = slice.call(arguments, 1);
	    return function() {
	      return func.apply(this, args.concat(slice.call(arguments)));
	    };
	  };
	
	  // Bind all of an object's methods to that object. Useful for ensuring that
	  // all callbacks defined on an object belong to it.
	  _.bindAll = function(obj) {
	    var funcs = slice.call(arguments, 1);
	    if (funcs.length === 0) throw new Error("bindAll must be passed function names");
	    each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); });
	    return obj;
	  };
	
	  // Memoize an expensive function by storing its results.
	  _.memoize = function(func, hasher) {
	    var memo = {};
	    hasher || (hasher = _.identity);
	    return function() {
	      var key = hasher.apply(this, arguments);
	      return _.has(memo, key) ? memo[key] : (memo[key] = func.apply(this, arguments));
	    };
	  };
	
	  // Delays a function for the given number of milliseconds, and then calls
	  // it with the arguments supplied.
	  _.delay = function(func, wait) {
	    var args = slice.call(arguments, 2);
	    return setTimeout(function(){ return func.apply(null, args); }, wait);
	  };
	
	  // Defers a function, scheduling it to run after the current call stack has
	  // cleared.
	  _.defer = function(func) {
	    return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1)));
	  };
	
	  // Returns a function, that, when invoked, will only be triggered at most once
	  // during a given window of time. Normally, the throttled function will run
	  // as much as it can, without ever going more than once per `wait` duration;
	  // but if you'd like to disable the execution on the leading edge, pass
	  // `{leading: false}`. To disable execution on the trailing edge, ditto.
	  _.throttle = function(func, wait, options) {
	    var context, args, result;
	    var timeout = null;
	    var previous = 0;
	    options || (options = {});
	    var later = function() {
	      previous = options.leading === false ? 0 : new Date;
	      timeout = null;
	      result = func.apply(context, args);
	    };
	    return function() {
	      var now = new Date;
	      if (!previous && options.leading === false) previous = now;
	      var remaining = wait - (now - previous);
	      context = this;
	      args = arguments;
	      if (remaining <= 0) {
	        clearTimeout(timeout);
	        timeout = null;
	        previous = now;
	        result = func.apply(context, args);
	      } else if (!timeout && options.trailing !== false) {
	        timeout = setTimeout(later, remaining);
	      }
	      return result;
	    };
	  };
	
	  // Returns a function, that, as long as it continues to be invoked, will not
	  // be triggered. The function will be called after it stops being called for
	  // N milliseconds. If `immediate` is passed, trigger the function on the
	  // leading edge, instead of the trailing.
	  _.debounce = function(func, wait, immediate) {
	    var result;
	    var timeout = null;
	    return function() {
	      var context = this, args = arguments;
	      var later = function() {
	        timeout = null;
	        if (!immediate) result = func.apply(context, args);
	      };
	      var callNow = immediate && !timeout;
	      clearTimeout(timeout);
	      timeout = setTimeout(later, wait);
	      if (callNow) result = func.apply(context, args);
	      return result;
	    };
	  };
	
	  // Returns a function that will be executed at most one time, no matter how
	  // often you call it. Useful for lazy initialization.
	  _.once = function(func) {
	    var ran = false, memo;
	    return function() {
	      if (ran) return memo;
	      ran = true;
	      memo = func.apply(this, arguments);
	      func = null;
	      return memo;
	    };
	  };
	
	  // Returns the first function passed as an argument to the second,
	  // allowing you to adjust arguments, run code before and after, and
	  // conditionally execute the original function.
	  _.wrap = function(func, wrapper) {
	    return function() {
	      var args = [func];
	      push.apply(args, arguments);
	      return wrapper.apply(this, args);
	    };
	  };
	
	  // Returns a function that is the composition of a list of functions, each
	  // consuming the return value of the function that follows.
	  _.compose = function() {
	    var funcs = arguments;
	    return function() {
	      var args = arguments;
	      for (var i = funcs.length - 1; i >= 0; i--) {
	        args = [funcs[i].apply(this, args)];
	      }
	      return args[0];
	    };
	  };
	
	  // Returns a function that will only be executed after being called N times.
	  _.after = function(times, func) {
	    return function() {
	      if (--times < 1) {
	        return func.apply(this, arguments);
	      }
	    };
	  };
	
	  // Object Functions
	  // ----------------
	
	  // Retrieve the names of an object's properties.
	  // Delegates to **ECMAScript 5**'s native `Object.keys`
	  _.keys = nativeKeys || function(obj) {
	    if (obj !== Object(obj)) throw new TypeError('Invalid object');
	    var keys = [];
	    for (var key in obj) if (_.has(obj, key)) keys.push(key);
	    return keys;
	  };
	
	  // Retrieve the values of an object's properties.
	  _.values = function(obj) {
	    var values = [];
	    for (var key in obj) if (_.has(obj, key)) values.push(obj[key]);
	    return values;
	  };
	
	  // Convert an object into a list of `[key, value]` pairs.
	  _.pairs = function(obj) {
	    var pairs = [];
	    for (var key in obj) if (_.has(obj, key)) pairs.push([key, obj[key]]);
	    return pairs;
	  };
	
	  // Invert the keys and values of an object. The values must be serializable.
	  _.invert = function(obj) {
	    var result = {};
	    for (var key in obj) if (_.has(obj, key)) result[obj[key]] = key;
	    return result;
	  };
	
	  // Return a sorted list of the function names available on the object.
	  // Aliased as `methods`
	  _.functions = _.methods = function(obj) {
	    var names = [];
	    for (var key in obj) {
	      if (_.isFunction(obj[key])) names.push(key);
	    }
	    return names.sort();
	  };
	
	  // Extend a given object with all the properties in passed-in object(s).
	  _.extend = function(obj) {
	    each(slice.call(arguments, 1), function(source) {
	      if (source) {
	        for (var prop in source) {
	          obj[prop] = source[prop];
	        }
	      }
	    });
	    return obj;
	  };
	
	  // Return a copy of the object only containing the whitelisted properties.
	  _.pick = function(obj) {
	    var copy = {};
	    var keys = concat.apply(ArrayProto, slice.call(arguments, 1));
	    each(keys, function(key) {
	      if (key in obj) copy[key] = obj[key];
	    });
	    return copy;
	  };
	
	   // Return a copy of the object without the blacklisted properties.
	  _.omit = function(obj) {
	    var copy = {};
	    var keys = concat.apply(ArrayProto, slice.call(arguments, 1));
	    for (var key in obj) {
	      if (!_.contains(keys, key)) copy[key] = obj[key];
	    }
	    return copy;
	  };
	
	  // Fill in a given object with default properties.
	  _.defaults = function(obj) {
	    each(slice.call(arguments, 1), function(source) {
	      if (source) {
	        for (var prop in source) {
	          if (obj[prop] === void 0) obj[prop] = source[prop];
	        }
	      }
	    });
	    return obj;
	  };
	
	  // Create a (shallow-cloned) duplicate of an object.
	  _.clone = function(obj) {
	    if (!_.isObject(obj)) return obj;
	    return _.isArray(obj) ? obj.slice() : _.extend({}, obj);
	  };
	
	  // Invokes interceptor with the obj, and then returns obj.
	  // The primary purpose of this method is to "tap into" a method chain, in
	  // order to perform operations on intermediate results within the chain.
	  _.tap = function(obj, interceptor) {
	    interceptor(obj);
	    return obj;
	  };
	
	  // Internal recursive comparison function for `isEqual`.
	  var eq = function(a, b, aStack, bStack) {
	    // Identical objects are equal. `0 === -0`, but they aren't identical.
	    // See the [Harmony `egal` proposal](http://wiki.ecmascript.org/doku.php?id=harmony:egal).
	    if (a === b) return a !== 0 || 1 / a == 1 / b;
	    // A strict comparison is necessary because `null == undefined`.
	    if (a == null || b == null) return a === b;
	    // Unwrap any wrapped objects.
	    if (a instanceof _) a = a._wrapped;
	    if (b instanceof _) b = b._wrapped;
	    // Compare `[[Class]]` names.
	    var className = toString.call(a);
	    if (className != toString.call(b)) return false;
	    switch (className) {
	      // Strings, numbers, dates, and booleans are compared by value.
	      case '[object String]':
	        // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is
	        // equivalent to `new String("5")`.
	        return a == String(b);
	      case '[object Number]':
	        // `NaN`s are equivalent, but non-reflexive. An `egal` comparison is performed for
	        // other numeric values.
	        return a != +a ? b != +b : (a == 0 ? 1 / a == 1 / b : a == +b);
	      case '[object Date]':
	      case '[object Boolean]':
	        // Coerce dates and booleans to numeric primitive values. Dates are compared by their
	        // millisecond representations. Note that invalid dates with millisecond representations
	        // of `NaN` are not equivalent.
	        return +a == +b;
	      // RegExps are compared by their source patterns and flags.
	      case '[object RegExp]':
	        return a.source == b.source &&
	               a.global == b.global &&
	               a.multiline == b.multiline &&
	               a.ignoreCase == b.ignoreCase;
	    }
	    if (typeof a != 'object' || typeof b != 'object') return false;
	    // Assume equality for cyclic structures. The algorithm for detecting cyclic
	    // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.
	    var length = aStack.length;
	    while (length--) {
	      // Linear search. Performance is inversely proportional to the number of
	      // unique nested structures.
	      if (aStack[length] == a) return bStack[length] == b;
	    }
	    // Objects with different constructors are not equivalent, but `Object`s
	    // from different frames are.
	    var aCtor = a.constructor, bCtor = b.constructor;
	    if (aCtor !== bCtor && !(_.isFunction(aCtor) && (aCtor instanceof aCtor) &&
	                             _.isFunction(bCtor) && (bCtor instanceof bCtor))) {
	      return false;
	    }
	    // Add the first object to the stack of traversed objects.
	    aStack.push(a);
	    bStack.push(b);
	    var size = 0, result = true;
	    // Recursively compare objects and arrays.
	    if (className == '[object Array]') {
	      // Compare array lengths to determine if a deep comparison is necessary.
	      size = a.length;
	      result = size == b.length;
	      if (result) {
	        // Deep compare the contents, ignoring non-numeric properties.
	        while (size--) {
	          if (!(result = eq(a[size], b[size], aStack, bStack))) break;
	        }
	      }
	    } else {
	      // Deep compare objects.
	      for (var key in a) {
	        if (_.has(a, key)) {
	          // Count the expected number of properties.
	          size++;
	          // Deep compare each member.
	          if (!(result = _.has(b, key) && eq(a[key], b[key], aStack, bStack))) break;
	        }
	      }
	      // Ensure that both objects contain the same number of properties.
	      if (result) {
	        for (key in b) {
	          if (_.has(b, key) && !(size--)) break;
	        }
	        result = !size;
	      }
	    }
	    // Remove the first object from the stack of traversed objects.
	    aStack.pop();
	    bStack.pop();
	    return result;
	  };
	
	  // Perform a deep comparison to check if two objects are equal.
	  _.isEqual = function(a, b) {
	    return eq(a, b, [], []);
	  };
	
	  // Is a given array, string, or object empty?
	  // An "empty" object has no enumerable own-properties.
	  _.isEmpty = function(obj) {
	    if (obj == null) return true;
	    if (_.isArray(obj) || _.isString(obj)) return obj.length === 0;
	    for (var key in obj) if (_.has(obj, key)) return false;
	    return true;
	  };
	
	  // Is a given value a DOM element?
	  _.isElement = function(obj) {
	    return !!(obj && obj.nodeType === 1);
	  };
	
	  // Is a given value an array?
	  // Delegates to ECMA5's native Array.isArray
	  _.isArray = nativeIsArray || function(obj) {
	    return toString.call(obj) == '[object Array]';
	  };
	
	  // Is a given variable an object?
	  _.isObject = function(obj) {
	    return obj === Object(obj);
	  };
	
	  // Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp.
	  each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp'], function(name) {
	    _['is' + name] = function(obj) {
	      return toString.call(obj) == '[object ' + name + ']';
	    };
	  });
	
	  // Define a fallback version of the method in browsers (ahem, IE), where
	  // there isn't any inspectable "Arguments" type.
	  if (!_.isArguments(arguments)) {
	    _.isArguments = function(obj) {
	      return !!(obj && _.has(obj, 'callee'));
	    };
	  }
	
	  // Optimize `isFunction` if appropriate.
	  if (true) {
	    _.isFunction = function(obj) {
	      return typeof obj === 'function';
	    };
	  }
	
	  // Is a given object a finite number?
	  _.isFinite = function(obj) {
	    return isFinite(obj) && !isNaN(parseFloat(obj));
	  };
	
	  // Is the given value `NaN`? (NaN is the only number which does not equal itself).
	  _.isNaN = function(obj) {
	    return _.isNumber(obj) && obj != +obj;
	  };
	
	  // Is a given value a boolean?
	  _.isBoolean = function(obj) {
	    return obj === true || obj === false || toString.call(obj) == '[object Boolean]';
	  };
	
	  // Is a given value equal to null?
	  _.isNull = function(obj) {
	    return obj === null;
	  };
	
	  // Is a given variable undefined?
	  _.isUndefined = function(obj) {
	    return obj === void 0;
	  };
	
	  // Shortcut function for checking if an object has a given property directly
	  // on itself (in other words, not on a prototype).
	  _.has = function(obj, key) {
	    return hasOwnProperty.call(obj, key);
	  };
	
	  // Utility Functions
	  // -----------------
	
	  // Run Underscore.js in *noConflict* mode, returning the `_` variable to its
	  // previous owner. Returns a reference to the Underscore object.
	  _.noConflict = function() {
	    root._ = previousUnderscore;
	    return this;
	  };
	
	  // Keep the identity function around for default iterators.
	  _.identity = function(value) {
	    return value;
	  };
	
	  // Run a function **n** times.
	  _.times = function(n, iterator, context) {
	    var accum = Array(Math.max(0, n));
	    for (var i = 0; i < n; i++) accum[i] = iterator.call(context, i);
	    return accum;
	  };
	
	  // Return a random integer between min and max (inclusive).
	  _.random = function(min, max) {
	    if (max == null) {
	      max = min;
	      min = 0;
	    }
	    return min + Math.floor(Math.random() * (max - min + 1));
	  };
	
	  // List of HTML entities for escaping.
	  var entityMap = {
	    escape: {
	      '&': '&amp;',
	      '<': '&lt;',
	      '>': '&gt;',
	      '"': '&quot;',
	      "'": '&#x27;',
	      '/': '&#x2F;'
	    }
	  };
	  entityMap.unescape = _.invert(entityMap.escape);
	
	  // Regexes containing the keys and values listed immediately above.
	  var entityRegexes = {
	    escape:   new RegExp('[' + _.keys(entityMap.escape).join('') + ']', 'g'),
	    unescape: new RegExp('(' + _.keys(entityMap.unescape).join('|') + ')', 'g')
	  };
	
	  // Functions for escaping and unescaping strings to/from HTML interpolation.
	  _.each(['escape', 'unescape'], function(method) {
	    _[method] = function(string) {
	      if (string == null) return '';
	      return ('' + string).replace(entityRegexes[method], function(match) {
	        return entityMap[method][match];
	      });
	    };
	  });
	
	  // If the value of the named `property` is a function then invoke it with the
	  // `object` as context; otherwise, return it.
	  _.result = function(object, property) {
	    if (object == null) return void 0;
	    var value = object[property];
	    return _.isFunction(value) ? value.call(object) : value;
	  };
	
	  // Add your own custom functions to the Underscore object.
	  _.mixin = function(obj) {
	    each(_.functions(obj), function(name){
	      var func = _[name] = obj[name];
	      _.prototype[name] = function() {
	        var args = [this._wrapped];
	        push.apply(args, arguments);
	        return result.call(this, func.apply(_, args));
	      };
	    });
	  };
	
	  // Generate a unique integer id (unique within the entire client session).
	  // Useful for temporary DOM ids.
	  var idCounter = 0;
	  _.uniqueId = function(prefix) {
	    var id = ++idCounter + '';
	    return prefix ? prefix + id : id;
	  };
	
	  // By default, Underscore uses ERB-style template delimiters, change the
	  // following template settings to use alternative delimiters.
	  _.templateSettings = {
	    evaluate    : /<%([\s\S]+?)%>/g,
	    interpolate : /<%=([\s\S]+?)%>/g,
	    escape      : /<%-([\s\S]+?)%>/g
	  };
	
	  // When customizing `templateSettings`, if you don't want to define an
	  // interpolation, evaluation or escaping regex, we need one that is
	  // guaranteed not to match.
	  var noMatch = /(.)^/;
	
	  // Certain characters need to be escaped so that they can be put into a
	  // string literal.
	  var escapes = {
	    "'":      "'",
	    '\\':     '\\',
	    '\r':     'r',
	    '\n':     'n',
	    '\t':     't',
	    '\u2028': 'u2028',
	    '\u2029': 'u2029'
	  };
	
	  var escaper = /\\|'|\r|\n|\t|\u2028|\u2029/g;
	
	  // JavaScript micro-templating, similar to John Resig's implementation.
	  // Underscore templating handles arbitrary delimiters, preserves whitespace,
	  // and correctly escapes quotes within interpolated code.
	  _.template = function(text, data, settings) {
	    var render;
	    settings = _.defaults({}, settings, _.templateSettings);
	
	    // Combine delimiters into one regular expression via alternation.
	    var matcher = new RegExp([
	      (settings.escape || noMatch).source,
	      (settings.interpolate || noMatch).source,
	      (settings.evaluate || noMatch).source
	    ].join('|') + '|$', 'g');
	
	    // Compile the template source, escaping string literals appropriately.
	    var index = 0;
	    var source = "__p+='";
	    text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {
	      source += text.slice(index, offset)
	        .replace(escaper, function(match) { return '\\' + escapes[match]; });
	
	      if (escape) {
	        source += "'+\n((__t=(" + escape + "))==null?'':_.escape(__t))+\n'";
	      }
	      if (interpolate) {
	        source += "'+\n((__t=(" + interpolate + "))==null?'':__t)+\n'";
	      }
	      if (evaluate) {
	        source += "';\n" + evaluate + "\n__p+='";
	      }
	      index = offset + match.length;
	      return match;
	    });
	    source += "';\n";
	
	    // If a variable is not specified, place data values in local scope.
	    if (!settings.variable) source = 'with(obj||{}){\n' + source + '}\n';
	
	    source = "var __t,__p='',__j=Array.prototype.join," +
	      "print=function(){__p+=__j.call(arguments,'');};\n" +
	      source + "return __p;\n";
	
	    try {
	      render = new Function(settings.variable || 'obj', '_', source);
	    } catch (e) {
	      e.source = source;
	      throw e;
	    }
	
	    if (data) return render(data, _);
	    var template = function(data) {
	      return render.call(this, data, _);
	    };
	
	    // Provide the compiled function source as a convenience for precompilation.
	    template.source = 'function(' + (settings.variable || 'obj') + '){\n' + source + '}';
	
	    return template;
	  };
	
	  // Add a "chain" function, which will delegate to the wrapper.
	  _.chain = function(obj) {
	    return _(obj).chain();
	  };
	
	  // OOP
	  // ---------------
	  // If Underscore is called as a function, it returns a wrapped object that
	  // can be used OO-style. This wrapper holds altered versions of all the
	  // underscore functions. Wrapped objects may be chained.
	
	  // Helper function to continue chaining intermediate results.
	  var result = function(obj) {
	    return this._chain ? _(obj).chain() : obj;
	  };
	
	  // Add all of the Underscore functions to the wrapper object.
	  _.mixin(_);
	
	  // Add all mutator Array functions to the wrapper.
	  each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
	    var method = ArrayProto[name];
	    _.prototype[name] = function() {
	      var obj = this._wrapped;
	      method.apply(obj, arguments);
	      if ((name == 'shift' || name == 'splice') && obj.length === 0) delete obj[0];
	      return result.call(this, obj);
	    };
	  });
	
	  // Add all accessor Array functions to the wrapper.
	  each(['concat', 'join', 'slice'], function(name) {
	    var method = ArrayProto[name];
	    _.prototype[name] = function() {
	      return result.call(this, method.apply(this._wrapped, arguments));
	    };
	  });
	
	  _.extend(_.prototype, {
	
	    // Start chaining a wrapped Underscore object.
	    chain: function() {
	      this._chain = true;
	      return this;
	    },
	
	    // Extracts the result from a wrapped and chained object.
	    value: function() {
	      return this._wrapped;
	    }
	
	  });
	
	}).call(this);
	/**
	 * The Events module pulled from [Backbone.js](http://backbonejs.org/)
	 * Stripped and modified to work with node.js and optimize types of calls
	 * for animation based events.
	 */
	
	var Backbone = Backbone || {};
	
	(function() {
	
	  var array = [];
	  var slice = array.slice;
	
	  // Backbone.Events
	  // ---------------
	
	  // Regular expression used to split event strings.
	  var eventSplitter = /\s+/;
	
	  /**
	   * Events API deprecated because of additional calls and checks
	   * multiple times a frame tick in two.js
	   */
	
	  // Optimized internal dispatch function for triggering events. Tries to
	  // keep the usual cases speedy (most Backbone events have 3 arguments).
	  var triggerEvents = function(obj, events, args) {
	    var ev, i = -1, l = events.length;
	    switch (args.length) {
	    case 0: while (++i < l) (ev = events[i]).callback.call(ev.ctx);
	    return;
	    case 1: while (++i < l) (ev = events[i]).callback.call(ev.ctx, args[0]);
	    return;
	    case 2: while (++i < l) (ev = events[i]).callback.call(ev.ctx, args[0], args[1]);
	    return;
	    case 3: while (++i < l) (ev = events[i]).callback.call(ev.ctx, args[0], args[1], args[2]);
	    return;
	    default: while (++i < l) (ev = events[i]).callback.apply(ev.ctx, args);
	    }
	  };
	
	  var Events = Backbone.Events = {
	
	    // Bind one or more space separated events, or an events map,
	    // to a `callback` function. Passing `"all"` will bind the callback to
	    // all events fired.
	    on: function(name, callback, context) {
	      // if (!(eventsApi(this, 'on', name, [callback, context]) && callback)) return this;
	      this._events || (this._events = {});
	      var list = this._events[name] || (this._events[name] = []);
	      list.push({callback: callback, context: context, ctx: context || this});
	      return this;
	    },
	
	    // Bind events to only be triggered a single time. After the first time
	    // the callback is invoked, it will be removed.
	    once: function(name, callback, context) {
	      // if (!(eventsApi(this, 'once', name, [callback, context]) && callback)) return this;
	      var self = this;
	      var once = _.once(function() {
	        self.off(name, once);
	        callback.apply(this, arguments);
	      });
	      once._callback = callback;
	      this.on(name, once, context);
	      return this;
	    },
	
	    // Remove one or many callbacks. If `context` is null, removes all
	    // callbacks with that function. If `callback` is null, removes all
	    // callbacks for the event. If `events` is null, removes all bound
	    // callbacks for all events.
	    off: function(name, callback, context) {
	      var list, ev, events, names, i, l, j, k;
	      if (!this._events/** || !eventsApi(this, 'off', name, [callback, context])**/) return this;
	      if (!name && !callback && !context) {
	        this._events = {};
	        return this;
	      }
	
	      names = name ? [name] : _.keys(this._events);
	      for (i = 0, l = names.length; i < l; i++) {
	        name = names[i];
	        if (list = this._events[name]) {
	          events = [];
	          if (callback || context) {
	            for (j = 0, k = list.length; j < k; j++) {
	              ev = list[j];
	              if ((callback && callback !== (ev.callback._callback || ev.callback)) ||
	                  (context && context !== ev.context)) {
	                events.push(ev);
	              }
	            }
	          }
	          this._events[name] = events;
	        }
	      }
	
	      return this;
	    },
	
	    // Trigger one or many events, firing all bound callbacks. Callbacks are
	    // passed the same arguments as `trigger` is, apart from the event name
	    // (unless you're listening on `"all"`, which will cause your callback to
	    // receive the true name of the event as the first argument).
	    trigger: function(name) {
	      if (!this._events) return this;
	      var args = slice.call(arguments, 1);
	      // if (!eventsApi(this, 'trigger', name, args)) return this;
	      var events = this._events[name];
	      var allEvents = this._events.all;
	      if (events) triggerEvents(this, events, args);
	      if (allEvents) triggerEvents(this, allEvents, arguments);
	      return this;
	    },
	
	    // An inversion-of-control version of `on`. Tell *this* object to listen to
	    // an event in another object ... keeping track of what it's listening to.
	    listenTo: function(object, events, callback) {
	      var listeners = this._listeners || (this._listeners = {});
	      var id = object._listenerId || (object._listenerId = _.uniqueId('l'));
	      listeners[id] = object;
	      object.on(events, callback || this, this);
	      return this;
	    },
	
	    // Tell this object to stop listening to either specific events ... or
	    // to every object it's currently listening to.
	    stopListening: function(object, events, callback) {
	      var listeners = this._listeners;
	      if (!listeners) return;
	      if (object) {
	        object.off(events, callback, this);
	        if (!events && !callback) delete listeners[object._listenerId];
	      } else {
	        for (var id in listeners) {
	          listeners[id].off(null, null, this);
	        }
	        this._listeners = {};
	      }
	      return this;
	    }
	  };
	
	  // Aliases for backwards compatibility.
	  Events.bind   = Events.on;
	  Events.unbind = Events.off;
	
	  if (true) {
	    if (typeof module !== 'undefined' && module.exports) {
	      exports = module.exports = Events;
	    }
	    exports.Backbone = exports.Backbone || Backbone;
	  }
	
	})();
	/**
	 * http://paulirish.com/2011/requestanimationframe-for-smart-animating/
	 * And modified to work with node.js
	 */
	
	(function() {
	
	  var root = this;
	  var lastTime = 0;
	  var vendors = ['ms', 'moz', 'webkit', 'o'];
	
	  if (true) {
	    if (typeof module !== 'undefined' && module.exports) {
	      exports = module.exports = raf;
	    }
	    exports.requestAnimationFrame = raf;
	    return;
	  }
	
	  for (var x = 0; x < vendors.length && !root.requestAnimationFrame; ++x) {
	    root.requestAnimationFrame = root[vendors[x]+'RequestAnimationFrame'];
	    root.cancelAnimationFrame =
	      root[vendors[x]+'CancelAnimationFrame'] || root[vendors[x]+'CancelRequestAnimationFrame'];
	  }
	
	  if (!root.requestAnimationFrame)
	    root.requestAnimationFrame = raf;
	
	  if (!root.cancelAnimationFrame)
	    root.cancelAnimationFrame = function(id) {
	      clearTimeout(id);
	    };
	
	  function raf(callback, element) {
	    var currTime = new Date().getTime();
	    var timeToCall = Math.max(0, 16 - (currTime - lastTime));
	    var id = root.setTimeout(function() { callback(currTime + timeToCall); }, timeToCall);
	    lastTime = currTime + timeToCall;
	    return id;
	  }
	
	}());
	
	(function() {
	
	  var root = this;
	  var previousTwo = root.Two || {};
	
	  /**
	   * Constants
	   */
	
	  var sin = Math.sin,
	    cos = Math.cos,
	    atan2 = Math.atan2,
	    sqrt = Math.sqrt,
	    round = Math.round,
	    abs = Math.abs,
	    PI = Math.PI,
	    TWO_PI = PI * 2,
	    HALF_PI = PI / 2,
	    pow = Math.pow,
	    min = Math.min,
	    max = Math.max;
	
	  /**
	   * Localized variables
	   */
	
	  var count = 0;
	
	  /**
	   * Cross browser dom events.
	   */
	  var dom = {
	
	    hasEventListeners: _.isFunction(root.addEventListener),
	
	    bind: function(elem, event, func, bool) {
	      if (this.hasEventListeners) {
	        elem.addEventListener(event, func, !!bool);
	      } else {
	        elem.attachEvent('on' + event, func);
	      }
	      return this;
	    },
	
	    unbind: function(elem, event, func, bool) {
	      if (this.hasEventListeners) {
	        elem.removeEventListeners(event, func, !!bool);
	      } else {
	        elem.detachEvent('on' + event, func);
	      }
	      return this;
	    }
	
	  };
	
	  /**
	   * @class
	   */
	  var Two = root.Two = function(options) {
	
	    // Determine what Renderer to use and setup a scene.
	
	    var params = _.defaults(options || {}, {
	      fullscreen: false,
	      width: 640,
	      height: 480,
	      type: Two.Types.svg,
	      autostart: false
	    });
	
	    _.each(params, function(v, k) {
	      if (k === 'fullscreen' || k === 'width' || k === 'height' || k === 'autostart') {
	        return;
	      }
	      this[k] = v;
	    }, this);
	
	    // Specified domElement overrides type declaration.
	    if (_.isElement(params.domElement)) {
	      this.type = Two.Types[params.domElement.tagName.toLowerCase()];
	    }
	
	    this.renderer = new Two[this.type](this);
	    Two.Utils.setPlaying.call(this, params.autostart);
	    this.frameCount = 0;
	
	    if (params.fullscreen) {
	
	      var fitted = _.bind(fitToWindow, this);
	      _.extend(document.body.style, {
	        overflow: 'hidden',
	        margin: 0,
	        padding: 0,
	        top: 0,
	        left: 0,
	        right: 0,
	        bottom: 0,
	        position: 'fixed'
	      });
	      _.extend(this.renderer.domElement.style, {
	        display: 'block',
	        top: 0,
	        left: 0,
	        right: 0,
	        bottom: 0,
	        position: 'fixed'
	      });
	      dom.bind(root, 'resize', fitted);
	      fitted();
	
	
	    } else if (!_.isElement(params.domElement)) {
	
	      this.renderer.setSize(params.width, params.height, this.ratio);
	      this.width = params.width;
	      this.height = params.height;
	
	    }
	
	    this.scene = this.renderer.scene;
	
	    Two.Instances.push(this);
	
	  };
	
	  _.extend(Two, {
	
	    /**
	     * Primitive
	     */
	
	    Array: root.Float32Array || Array,
	
	    Types: {
	      webgl: 'WebGLRenderer',
	      svg: 'SVGRenderer',
	      canvas: 'CanvasRenderer'
	    },
	
	    Version: 'v0.4.0',
	
	    Identifier: 'two_',
	
	    Properties: {
	      hierarchy: 'hierarchy',
	      demotion: 'demotion'
	    },
	
	    Events: {
	      play: 'play',
	      pause: 'pause',
	      update: 'update',
	      render: 'render',
	      resize: 'resize',
	      change: 'change',
	      remove: 'remove',
	      insert: 'insert'
	    },
	
	    Commands: {
	      move: 'M',
	      line: 'L',
	      curve: 'C',
	      close: 'Z'
	    },
	
	    Resolution: 8,
	
	    Instances: [],
	
	    noConflict: function() {
	      root.Two = previousTwo;
	      return this;
	    },
	
	    uniqueId: function() {
	      var id = count;
	      count++;
	      return id;
	    },
	
	    Utils: {
	
	      /**
	       * Release an arbitrary class' events from the two.js corpus and recurse
	       * through its children and or vertices.
	       */
	      release: function(obj) {
	
	        if (!_.isObject(obj)) {
	          return;
	        }
	
	        if (_.isFunction(obj.unbind)) {
	          obj.unbind();
	        }
	
	        if (obj.vertices) {
	          if (_.isFunction(obj.vertices.unbind)) {
	            obj.vertices.unbind();
	          }
	          _.each(obj.vertices, function(v) {
	            if (_.isFunction(v.unbind)) {
	              v.unbind();
	            }
	          });
	        }
	
	        if (obj.children) {
	          _.each(obj.children, function(obj) {
	            Two.Utils.release(obj);
	          });
	        }
	
	      },
	
	      Curve: {
	
	        CollinearityEpsilon: pow(10, -30),
	
	        RecursionLimit: 16,
	
	        CuspLimit: 0,
	
	        Tolerance: {
	          distance: 0.25,
	          angle: 0,
	          epsilon: 0.01
	        },
	
	        // Lookup tables for abscissas and weights with values for n = 2 .. 16.
	        // As values are symmetric, only store half of them and adapt algorithm
	        // to factor in symmetry.
	        abscissas: [
	          [  0.5773502691896257645091488],
	          [0,0.7745966692414833770358531],
	          [  0.3399810435848562648026658,0.8611363115940525752239465],
	          [0,0.5384693101056830910363144,0.9061798459386639927976269],
	          [  0.2386191860831969086305017,0.6612093864662645136613996,0.9324695142031520278123016],
	          [0,0.4058451513773971669066064,0.7415311855993944398638648,0.9491079123427585245261897],
	          [  0.1834346424956498049394761,0.5255324099163289858177390,0.7966664774136267395915539,0.9602898564975362316835609],
	          [0,0.3242534234038089290385380,0.6133714327005903973087020,0.8360311073266357942994298,0.9681602395076260898355762],
	          [  0.1488743389816312108848260,0.4333953941292471907992659,0.6794095682990244062343274,0.8650633666889845107320967,0.9739065285171717200779640],
	          [0,0.2695431559523449723315320,0.5190961292068118159257257,0.7301520055740493240934163,0.8870625997680952990751578,0.9782286581460569928039380],
	          [  0.1252334085114689154724414,0.3678314989981801937526915,0.5873179542866174472967024,0.7699026741943046870368938,0.9041172563704748566784659,0.9815606342467192506905491],
	          [0,0.2304583159551347940655281,0.4484927510364468528779129,0.6423493394403402206439846,0.8015780907333099127942065,0.9175983992229779652065478,0.9841830547185881494728294],
	          [  0.1080549487073436620662447,0.3191123689278897604356718,0.5152486363581540919652907,0.6872929048116854701480198,0.8272013150697649931897947,0.9284348836635735173363911,0.9862838086968123388415973],
	          [0,0.2011940939974345223006283,0.3941513470775633698972074,0.5709721726085388475372267,0.7244177313601700474161861,0.8482065834104272162006483,0.9372733924007059043077589,0.9879925180204854284895657],
	          [  0.0950125098376374401853193,0.2816035507792589132304605,0.4580167776572273863424194,0.6178762444026437484466718,0.7554044083550030338951012,0.8656312023878317438804679,0.9445750230732325760779884,0.9894009349916499325961542]
	        ],
	
	        weights: [
	          [1],
	          [0.8888888888888888888888889,0.5555555555555555555555556],
	          [0.6521451548625461426269361,0.3478548451374538573730639],
	          [0.5688888888888888888888889,0.4786286704993664680412915,0.2369268850561890875142640],
	          [0.4679139345726910473898703,0.3607615730481386075698335,0.1713244923791703450402961],
	          [0.4179591836734693877551020,0.3818300505051189449503698,0.2797053914892766679014678,0.1294849661688696932706114],
	          [0.3626837833783619829651504,0.3137066458778872873379622,0.2223810344533744705443560,0.1012285362903762591525314],
	          [0.3302393550012597631645251,0.3123470770400028400686304,0.2606106964029354623187429,0.1806481606948574040584720,0.0812743883615744119718922],
	          [0.2955242247147528701738930,0.2692667193099963550912269,0.2190863625159820439955349,0.1494513491505805931457763,0.0666713443086881375935688],
	          [0.2729250867779006307144835,0.2628045445102466621806889,0.2331937645919904799185237,0.1862902109277342514260976,0.1255803694649046246346943,0.0556685671161736664827537],
	          [0.2491470458134027850005624,0.2334925365383548087608499,0.2031674267230659217490645,0.1600783285433462263346525,0.1069393259953184309602547,0.0471753363865118271946160],
	          [0.2325515532308739101945895,0.2262831802628972384120902,0.2078160475368885023125232,0.1781459807619457382800467,0.1388735102197872384636018,0.0921214998377284479144218,0.0404840047653158795200216],
	          [0.2152638534631577901958764,0.2051984637212956039659241,0.1855383974779378137417166,0.1572031671581935345696019,0.1215185706879031846894148,0.0801580871597602098056333,0.0351194603317518630318329],
	          [0.2025782419255612728806202,0.1984314853271115764561183,0.1861610000155622110268006,0.1662692058169939335532009,0.1395706779261543144478048,0.1071592204671719350118695,0.0703660474881081247092674,0.0307532419961172683546284],
	          [0.1894506104550684962853967,0.1826034150449235888667637,0.1691565193950025381893121,0.1495959888165767320815017,0.1246289712555338720524763,0.0951585116824927848099251,0.0622535239386478928628438,0.0271524594117540948517806]
	        ]
	
	      },
	
	      /**
	       * Account for high dpi rendering.
	       * http://www.html5rocks.com/en/tutorials/canvas/hidpi/
	       */
	
	      devicePixelRatio: root.devicePixelRatio || 1,
	
	      getBackingStoreRatio: function(ctx) {
	        return ctx.webkitBackingStorePixelRatio ||
	          ctx.mozBackingStorePixelRatio ||
	          ctx.msBackingStorePixelRatio ||
	          ctx.oBackingStorePixelRatio ||
	          ctx.backingStorePixelRatio || 1;
	      },
	
	      getRatio: function(ctx) {
	        return Two.Utils.devicePixelRatio / getBackingStoreRatio(ctx);
	      },
	
	      /**
	       * Properly defer play calling until after all objects
	       * have been updated with their newest styles.
	       */
	      setPlaying: function(b) {
	
	        this.playing = !!b;
	        return this;
	
	      },
	
	      /**
	       * Return the computed matrix of a nested object.
	       * TODO: Optimize traversal.
	       */
	      getComputedMatrix: function(object, matrix) {
	
	        matrix = (matrix && matrix.identity()) || new Two.Matrix();
	        var parent = object, matrices = [];
	
	        while (parent && parent._matrix) {
	          matrices.push(parent._matrix);
	          parent = parent.parent;
	        }
	
	        matrices.reverse();
	
	        _.each(matrices, function(m) {
	
	          var e = m.elements;
	          matrix.multiply(
	            e[0], e[1], e[2], e[3], e[4], e[5], e[6], e[7], e[8], e[9]);
	
	        });
	
	        return matrix;
	
	      },
	
	      deltaTransformPoint: function(matrix, x, y) {
	
	        var dx = x * matrix.a + y * matrix.c + 0;
	        var dy = x * matrix.b + y * matrix.d + 0;
	
	        return new Two.Vector(dx, dy);
	
	      },
	
	      /**
	       * https://gist.github.com/2052247
	       */
	      decomposeMatrix: function(matrix) {
	
	        // calculate delta transform point
	        var px = Two.Utils.deltaTransformPoint(matrix, 0, 1);
	        var py = Two.Utils.deltaTransformPoint(matrix, 1, 0);
	
	        // calculate skew
	        var skewX = ((180 / Math.PI) * Math.atan2(px.y, px.x) - 90);
	        var skewY = ((180 / Math.PI) * Math.atan2(py.y, py.x));
	
	        return {
	            translateX: matrix.e,
	            translateY: matrix.f,
	            scaleX: Math.sqrt(matrix.a * matrix.a + matrix.b * matrix.b),
	            scaleY: Math.sqrt(matrix.c * matrix.c + matrix.d * matrix.d),
	            skewX: skewX,
	            skewY: skewY,
	            rotation: skewX // rotation is the same as skew x
	        };
	
	      },
	
	      /**
	       * Walk through item properties and pick the ones of interest.
	       * Will try to resolve styles applied via CSS
	       */
	      applySvgAttributes: function(node, elem) {
	        var attributes = {}, styles = {}, i, key, value, attr;
	
	        // Not available in non browser environments
	        if (getComputedStyle) {
	          // Convert CSSStyleDeclaration to a normal object
	          var computedStyles = getComputedStyle(node);
	          i = computedStyles.length;
	
	          while(i--) {
	            key = computedStyles[i];
	            value = computedStyles[key];
	            // Gecko returns undefined for unset properties
	            // Webkit returns the default value
	            if (value !== undefined) {
	              styles[key] = value;
	            }
	          }
	        }
	
	        // Convert NodeMap to a normal object
	        i = node.attributes.length;
	        while(i--) {
	          attr = node.attributes[i];
	          attributes[attr.nodeName] = attr.value;
	        }
	
	        // Getting the correct opacity is a bit tricky, since SVG path elements don't
	        // support opacity as an attribute, but you can apply it via CSS.
	        // So we take the opacity and set (stroke/fill)-opacity to the same value.
	        if (!_.isUndefined(styles.opacity)) {
	          styles['stroke-opacity'] = styles.opacity;
	          styles['fill-opacity'] = styles.opacity;
	        }
	
	        // Merge attributes and applied styles (attributes take precedence)
	        _.extend(styles, attributes);
	
	        // Similarly visibility is influenced by the value of both display and visibility.
	        // Calculate a unified value here which defaults to `true`.
	        styles.visible = !(_.isUndefined(styles.display) && styles.display === 'none')
	          || (_.isUndefined(styles.visibility) && styles.visibility === 'hidden');
	
	        // Now iterate the whole thing
	        for (key in styles) {
	          value = styles[key];
	
	          switch (key) {
	            case 'transform':
	              if (value === 'none') break;
	              var m = node.getCTM();
	
	              // Might happen when transform string is empty or not valid.
	              if (m === null) break;
	
	              // // Option 1: edit the underlying matrix and don't force an auto calc.
	              // var m = node.getCTM();
	              // elem._matrix.manual = true;
	              // elem._matrix.set(m.a, m.b, m.c, m.d, m.e, m.f);
	
	              // Option 2: Decompose and infer Two.js related properties.
	              var transforms = Two.Utils.decomposeMatrix(node.getCTM());
	
	              elem.translation.set(transforms.translateX, transforms.translateY);
	              elem.rotation = transforms.rotation;
	              // Warning: Two.js elements only support uniform scalars...
	              elem.scale = transforms.scaleX;
	
	              // Override based on attributes.
	              if (styles.x) {
	                elem.translation.x = styles.x;
	              }
	
	              if (styles.y) {
	                elem.translation.y = styles.y;
	              }
	
	              break;
	            case 'visible':
	              elem.visible = value;
	              break;
	            case 'stroke-linecap':
	              elem.cap = value;
	              break;
	            case 'stroke-linejoin':
	              elem.join = value;
	              break;
	            case 'stroke-miterlimit':
	              elem.miter = value;
	              break;
	            case 'stroke-width':
	              elem.linewidth = parseFloat(value);
	              break;
	            case 'stroke-opacity':
	            case 'fill-opacity':
	            case 'opacity':
	              elem.opacity = parseFloat(value);
	              break;
	            case 'fill':
	            case 'stroke':
	              elem[key] = (value === 'none') ? 'transparent' : value;
	              break;
	            case 'id':
	              elem.id = value;
	              break;
	            case 'class':
	              elem.classList = value.split(' ');
	              break;
	          }
	        }
	
	        return elem;
	
	      },
	
	      /**
	       * Read any number of SVG node types and create Two equivalents of them.
	       */
	      read: {
	
	        svg: function() {
	          return Two.Utils.read.g.apply(this, arguments);
	        },
	
	        g: function(node) {
	
	          var group = new Two.Group();
	
	          // Switched up order to inherit more specific styles
	          Two.Utils.applySvgAttributes(node, group);
	
	          for (var i = 0, l = node.childNodes.length; i < l; i++) {
	            var n = node.childNodes[i];
	            var tag = n.nodeName;
	            if (!tag) return;
	
	            var tagName = tag.replace(/svg\:/ig, '').toLowerCase();
	
	            if (tagName in Two.Utils.read) {
	              var o = Two.Utils.read[tagName].call(this, n);
	              group.add(o);
	            }
	          }
	
	          return group;
	
	        },
	
	        polygon: function(node, open) {
	
	          var points = node.getAttribute('points');
	
	          var verts = [];
	          points.replace(/(-?[\d\.?]+),(-?[\d\.?]+)/g, function(match, p1, p2) {
	            verts.push(new Two.Anchor(parseFloat(p1), parseFloat(p2)));
	          });
	
	          var poly = new Two.Polygon(verts, !open).noStroke();
	          poly.fill = 'black';
	
	          return Two.Utils.applySvgAttributes(node, poly);
	
	        },
	
	        polyline: function(node) {
	          return Two.Utils.read.polygon(node, true);
	        },
	
	        path: function(node) {
	
	          var path = node.getAttribute('d');
	
	          // Create a Two.Polygon from the paths.
	
	          var coord = new Two.Anchor();
	          var control, coords;
	          var closed = false, relative = false;
	          var commands = path.match(/[a-df-z][^a-df-z]*/ig);
	          var last = commands.length - 1;
	
	          // Split up polybeziers
	
	          _.each(commands.slice(0), function(command, i) {
	
	            var type = command[0];
	            var lower = type.toLowerCase();
	            var items = command.slice(1).trim().split(/[\s,]+|(?=\s?[+\-])/);
	            var pre, post, result = [], bin;
	
	            if (i <= 0) {
	              commands = [];
	            }
	
	            switch (lower) {
	              case 'h':
	              case 'v':
	                if (items.length > 1) {
	                  bin = 1;
	                }
	                break;
	              case 'm':
	              case 'l':
	              case 't':
	                if (items.length > 2) {
	                  bin = 2;
	                }
	                break;
	              case 's':
	              case 'q':
	                if (items.length > 4) {
	                  bin = 4;
	                }
	                break;
	              case 'c':
	                if (items.length > 6) {
	                  bin = 6;
	                }
	                break;
	              case 'a':
	                // TODO: Handle Ellipses
	                break;
	            }
	
	            if (bin) {
	
	              for (var j = 0, l = items.length, times = 0; j < l; j+=bin) {
	
	                var ct = type;
	                if (times > 0) {
	
	                  switch (type) {
	                    case 'm':
	                      ct = 'l';
	                      break;
	                    case 'M':
	                      ct = 'L';
	                      break;
	                  }
	
	                }
	
	                result.push([ct].concat(items.slice(j, j + bin)).join(' '));
	                times++;
	
	              }
	
	              commands = Array.prototype.concat.apply(commands, result);
	
	            } else {
	
	              commands.push(command);
	
	            }
	
	          });
	
	          // Create the vertices for our Two.Polygon
	
	          var points = _.flatten(_.map(commands, function(command, i) {
	
	            var result, x, y;
	            var type = command[0];
	            var lower = type.toLowerCase();
	
	            coords = command.slice(1).trim();
	            coords = coords.replace(/(-?\d+(?:\.\d*)?)[eE]([+\-]?\d+)/g, function(match, n1, n2) {
	              return parseFloat(n1) * pow(10, n2);
	            });
	            coords = coords.split(/[\s,]+|(?=\s?[+\-])/);
	            relative = type === lower;
	
	            var x1, y1, x2, y2, x3, y3, x4, y4, reflection;
	
	            switch (lower) {
	
	              case 'z':
	                if (i >= last) {
	                  closed = true;
	                } else {
	                  x = coord.x;
	                  y = coord.y;
	                  result = new Two.Anchor(
	                    x, y,
	                    undefined, undefined,
	                    undefined, undefined,
	                    Two.Commands.close
	                  );
	                }
	                break;
	
	              case 'm':
	              case 'l':
	
	                x = parseFloat(coords[0]);
	                y = parseFloat(coords[1]);
	
	                result = new Two.Anchor(
	                  x, y,
	                  undefined, undefined,
	                  undefined, undefined,
	                  lower === 'm' ? Two.Commands.move : Two.Commands.line
	                );
	
	                if (relative) {
	                  result.addSelf(coord);
	                }
	
	                // result.controls.left.copy(result);
	                // result.controls.right.copy(result);
	
	                coord = result;
	                break;
	
	              case 'h':
	              case 'v':
	
	                var a = lower === 'h' ? 'x' : 'y';
	                var b = a === 'x' ? 'y' : 'x';
	
	                result = new Two.Anchor(
	                  undefined, undefined,
	                  undefined, undefined,
	                  undefined, undefined,
	                  Two.Commands.line
	                );
	                result[a] = parseFloat(coords[0]);
	                result[b] = coord[b];
	
	                if (relative) {
	                  result[a] += coord[a];
	                }
	
	                // result.controls.left.copy(result);
	                // result.controls.right.copy(result);
	
	                coord = result;
	                break;
	
	              case 'c':
	              case 's':
	
	                x1 = coord.x;
	                y1 = coord.y;
	
	                if (!control) {
	                  control = new Two.Vector();//.copy(coord);
	                }
	
	                if (lower === 'c') {
	
	                  x2 = parseFloat(coords[0]);
	                  y2 = parseFloat(coords[1]);
	                  x3 = parseFloat(coords[2]);
	                  y3 = parseFloat(coords[3]);
	                  x4 = parseFloat(coords[4]);
	                  y4 = parseFloat(coords[5]);
	
	                } else {
	
	                  // Calculate reflection control point for proper x2, y2
	                  // inclusion.
	
	                  reflection = getReflection(coord, control, relative);
	
	                  x2 = reflection.x;
	                  y2 = reflection.y;
	                  x3 = parseFloat(coords[0]);
	                  y3 = parseFloat(coords[1]);
	                  x4 = parseFloat(coords[2]);
	                  y4 = parseFloat(coords[3]);
	
	                }
	
	                if (relative) {
	                  x2 += x1;
	                  y2 += y1;
	                  x3 += x1;
	                  y3 += y1;
	                  x4 += x1;
	                  y4 += y1;
	                }
	
	                if (!_.isObject(coord.controls)) {
	                  Two.Anchor.AppendCurveProperties(coord);
	                }
	
	                coord.controls.right.set(x2 - coord.x, y2 - coord.y);
	                result = new Two.Anchor(
	                  x4, y4,
	                  x3 - x4, y3 - y4,
	                  undefined, undefined,
	                  Two.Commands.curve
	                );
	
	                coord = result;
	                control = result.controls.left;
	
	                break;
	
	              case 't':
	              case 'q':
	
	                x1 = coord.x;
	                y1 = coord.y;
	
	                if (!control) {
	                  control = new Two.Vector();//.copy(coord);
	                }
	
	                if (control.isZero()) {
	                  x2 = x1;
	                  y2 = y1;
	                } else {
	                  x2 = control.x;
	                  y1 = control.y;
	                }
	
	                if (lower === 'q') {
	
	                  x3 = parseFloat(coords[0]);
	                  y3 = parseFloat(coords[1]);
	                  x4 = parseFloat(coords[1]);
	                  y4 = parseFloat(coords[2]);
	
	                } else {
	
	                  reflection = getReflection(coord, control, relative);
	
	                  x3 = reflection.x;
	                  y3 = reflection.y;
	                  x4 = parseFloat(coords[0]);
	                  y4 = parseFloat(coords[1]);
	
	                }
	
	                if (relative) {
	                  x2 += x1;
	                  y2 += y1;
	                  x3 += x1;
	                  y3 += y1;
	                  x4 += x1;
	                  y4 += y1;
	                }
	
	                if (!_.isObject(coord.controls)) {
	                  Two.Anchor.AppendCurveProperties(coord);
	                }
	
	                coord.controls.right.set(x2 - coord.x, y2 - coord.y);
	                result = new Two.Anchor(
	                  x4, y4,
	                  x3 - x4, y3 - y4,
	                  undefined, undefined,
	                  Two.Commands.curve
	                );
	
	                coord = result;
	                control = result.controls.left;
	
	                break;
	
	              case 'a':
	                throw new Two.Utils.Error('not yet able to interpret Elliptical Arcs.');
	            }
	
	            return result;
	
	          }));
	
	          if (points.length <= 1) {
	            return;
	          }
	
	          points = _.compact(points);
	
	          var poly = new Two.Polygon(points, closed, undefined, true).noStroke();
	          poly.fill = 'black';
	
	          return Two.Utils.applySvgAttributes(node, poly);
	
	        },
	
	        circle: function(node) {
	
	          var x = parseFloat(node.getAttribute('cx'));
	          var y = parseFloat(node.getAttribute('cy'));
	          var r = parseFloat(node.getAttribute('r'));
	
	          var amount = Two.Resolution;
	          var points = _.map(_.range(amount), function(i) {
	            var pct = i / amount;
	            var theta = pct * TWO_PI;
	            var x = r * cos(theta);
	            var y = r * sin(theta);
	            return new Two.Anchor(x, y);
	          }, this);
	
	          var circle = new Two.Polygon(points, true, true).noStroke();
	          circle.translation.set(x, y);
	          circle.fill = 'black';
	
	          return Two.Utils.applySvgAttributes(node, circle);
	
	        },
	
	        ellipse: function(node) {
	
	          var x = parseFloat(node.getAttribute('cx'));
	          var y = parseFloat(node.getAttribute('cy'));
	          var width = parseFloat(node.getAttribute('rx'));
	          var height = parseFloat(node.getAttribute('ry'));
	
	          var amount = Two.Resolution;
	          var points = _.map(_.range(amount), function(i) {
	            var pct = i / amount;
	            var theta = pct * TWO_PI;
	            var x = width * cos(theta);
	            var y = height * sin(theta);
	            return new Two.Anchor(x, y);
	          }, this);
	
	          var ellipse = new Two.Polygon(points, true, true).noStroke();
	          ellipse.translation.set(x, y);
	          ellipse.fill = 'black';
	
	          return Two.Utils.applySvgAttributes(node, ellipse);
	
	        },
	
	        rect: function(node) {
	
	          var x = parseFloat(node.getAttribute('x'));
	          var y = parseFloat(node.getAttribute('y'));
	          var width = parseFloat(node.getAttribute('width'));
	          var height = parseFloat(node.getAttribute('height'));
	
	          var w2 = width / 2;
	          var h2 = height / 2;
	
	          var points = [
	            new Two.Anchor(w2, h2),
	            new Two.Anchor(-w2, h2),
	            new Two.Anchor(-w2, -h2),
	            new Two.Anchor(w2, -h2)
	          ];
	
	          var rect = new Two.Polygon(points, true).noStroke();
	          rect.translation.set(x + w2, y + h2);
	          rect.fill = 'black';
	
	          return Two.Utils.applySvgAttributes(node, rect);
	
	        },
	
	        line: function(node) {
	
	          var x1 = parseFloat(node.getAttribute('x1'));
	          var y1 = parseFloat(node.getAttribute('y1'));
	          var x2 = parseFloat(node.getAttribute('x2'));
	          var y2 = parseFloat(node.getAttribute('y2'));
	
	          var width = x2 - x1;
	          var height = y2 - y1;
	
	          var w2 = width / 2;
	          var h2 = height / 2;
	
	          var points = [
	            new Two.Anchor(- w2, - h2),
	            new Two.Anchor(w2, h2)
	          ];
	
	          // Center line and translate to desired position.
	
	          var line = new Two.Polygon(points).noFill();
	          line.translation.set(x1 + w2, y1 + h2);
	
	          return Two.Utils.applySvgAttributes(node, line);
	
	        }
	
	      },
	
	      /**
	       * Given 2 points (a, b) and corresponding control point for each
	       * return an array of points that represent points plotted along
	       * the curve. Number points determined by limit.
	       */
	      subdivide: function(x1, y1, x2, y2, x3, y3, x4, y4, limit) {
	
	        limit = limit || Two.Utils.Curve.RecursionLimit;
	        var amount = limit + 1;
	
	        // TODO: Issue 73
	        // Don't recurse if the end points are identical
	        if (x1 === x4 && y1 === y4) {
	          return [new Two.Anchor(x4, y4)];
	        }
	
	        return _.map(_.range(0, amount), function(i) {
	
	          var t = i / amount;
	          var x = getPointOnCubicBezier(t, x1, x2, x3, x4);
	          var y = getPointOnCubicBezier(t, y1, y2, y3, y4);
	
	          return new Two.Anchor(x, y);
	
	        });
	
	      },
	
	      getPointOnCubicBezier: function(t, a, b, c, d) {
	        var k = 1 - t;
	        return (k * k * k * a) + (3 * k * k * t * b) + (3 * k * t * t * c) +
	           (t * t * t * d);
	      },
	
	      /**
	       * Given 2 points (a, b) and corresponding control point for each
	       * return a float that represents the length of the curve using
	       * Gauss-Legendre algorithm. Limit iterations of calculation by `limit`.
	       */
	      getCurveLength: function(x1, y1, x2, y2, x3, y3, x4, y4, limit) {
	
	        // TODO: Better / fuzzier equality check
	        // Linear calculation
	        if (x1 === x2 && y1 === y2 && x3 === x4 && y3 === y4) {
	          var dx = x4 - x1;
	          var dy = y4 - y1;
	          return sqrt(dx * dx + dy * dy);
	        }
	
	        // Calculate the coefficients of a Bezier derivative.
	        var ax = 9 * (x2 - x3) + 3 * (x4 - x1),
	          bx = 6 * (x1 + x3) - 12 * x2,
	          cx = 3 * (x2 - x1),
	
	          ay = 9 * (y2 - y3) + 3 * (y4 - y1),
	          by = 6 * (y1 + y3) - 12 * y2,
	          cy = 3 * (y2 - y1);
	
	        var integrand = function(t) {
	          // Calculate quadratic equations of derivatives for x and y
	          var dx = (ax * t + bx) * t + cx,
	            dy = (ay * t + by) * t + cy;
	          return sqrt(dx * dx + dy * dy);
	        };
	
	        return integrate(
	          integrand, 0, 1, limit || Two.Utils.Curve.RecursionLimit
	        );
	
	      },
	
	      /**
	       * Integration for `getCurveLength` calculations. Referenced from
	       * Paper.js: https://github.com/paperjs/paper.js/blob/master/src/util/Numerical.js#L101
	       */
	      integrate: function(f, a, b, n) {
	        var x = Two.Utils.Curve.abscissas[n - 2],
	          w = Two.Utils.Curve.weights[n - 2],
	          A = 0.5 * (b - a),
	          B = A + a,
	          i = 0,
	          m = (n + 1) >> 1,
	          sum = n & 1 ? w[i++] * f(B) : 0; // Handle odd n
	        while (i < m) {
	          var Ax = A * x[i];
	          sum += w[i++] * (f(B + Ax) + f(B - Ax));
	        }
	        return A * sum;
	      },
	
	      /**
	       * Creates a set of points that have u, v values for anchor positions
	       */
	      getCurveFromPoints: function(points, closed) {
	
	        var l = points.length, last = l - 1;
	
	        for (var i = 0; i < l; i++) {
	
	          var point = points[i];
	
	          if (!_.isObject(point.controls)) {
	            Two.Anchor.AppendCurveProperties(point);
	          }
	
	          var prev = closed ? mod(i - 1, l) : max(i - 1, 0);
	          var next = closed ? mod(i + 1, l) : min(i + 1, last);
	
	          var a = points[prev];
	          var b = point;
	          var c = points[next];
	          getControlPoints(a, b, c);
	
	          b._command = i === 0 ? Two.Commands.move : Two.Commands.curve;
	
	          b.controls.left.x = _.isNumber(b.controls.left.x) ? b.controls.left.x : b.x;
	          b.controls.left.y = _.isNumber(b.controls.left.y) ? b.controls.left.y : b.y;
	
	          b.controls.right.x = _.isNumber(b.controls.right.x) ? b.controls.right.x : b.x;
	          b.controls.right.y = _.isNumber(b.controls.right.y) ? b.controls.right.y : b.y;
	
	        }
	
	      },
	
	      /**
	       * Given three coordinates return the control points for the middle, b,
	       * vertex.
	       */
	      getControlPoints: function(a, b, c) {
	
	        var a1 = angleBetween(a, b);
	        var a2 = angleBetween(c, b);
	
	        var d1 = distanceBetween(a, b);
	        var d2 = distanceBetween(c, b);
	
	        var mid = (a1 + a2) / 2;
	
	        // So we know which angle corresponds to which side.
	
	        b.u = _.isObject(b.controls.left) ? b.controls.left : new Two.Vector(0, 0);
	        b.v = _.isObject(b.controls.right) ? b.controls.right : new Two.Vector(0, 0);
	
	        // TODO: Issue 73
	        if (d1 < 0.0001 || d2 < 0.0001) {
	          if (!b._relative) {
	            b.controls.left.copy(b);
	            b.controls.right.copy(b);
	          }
	          return b;
	        }
	
	        d1 *= 0.33; // Why 0.33?
	        d2 *= 0.33;
	
	        if (a2 < a1) {
	          mid += HALF_PI;
	        } else {
	          mid -= HALF_PI;
	        }
	
	        b.controls.left.x = cos(mid) * d1;
	        b.controls.left.y = sin(mid) * d1;
	
	        mid -= PI;
	
	        b.controls.right.x = cos(mid) * d2;
	        b.controls.right.y = sin(mid) * d2;
	
	        if (!b._relative) {
	          b.controls.left.x += b.x;
	          b.controls.left.y += b.y;
	          b.controls.right.x += b.x;
	          b.controls.right.y += b.y;
	        }
	
	        return b;
	
	      },
	
	      /**
	       * Get the reflection of a point "b" about point "a". Where "a" is in
	       * absolute space and "b" is relative to "a".
	       *
	       * http://www.w3.org/TR/SVG11/implnote.html#PathElementImplementationNotes
	       */
	      getReflection: function(a, b, relative) {
	
	        return new Two.Vector(
	          2 * a.x - (b.x + a.x) - (relative ? a.x : 0),
	          2 * a.y - (b.y + a.y) - (relative ? a.y : 0)
	        );
	
	      },
	
	      angleBetween: function(A, B) {
	
	        var dx, dy;
	
	        if (arguments.length >= 4) {
	
	          dx = arguments[0] - arguments[2];
	          dy = arguments[1] - arguments[3];
	
	          return atan2(dy, dx);
	
	        }
	
	        dx = A.x - B.x;
	        dy = A.y - B.y;
	
	        return atan2(dy, dx);
	
	      },
	
	      distanceBetweenSquared: function(p1, p2) {
	
	        var dx = p1.x - p2.x;
	        var dy = p1.y - p2.y;
	
	        return dx * dx + dy * dy;
	
	      },
	
	      distanceBetween: function(p1, p2) {
	
	        return sqrt(distanceBetweenSquared(p1, p2));
	
	      },
	
	      // A pretty fast toFixed(3) alternative
	      // See http://jsperf.com/parsefloat-tofixed-vs-math-round/18
	      toFixed: function(v) {
	        return Math.floor(v * 1000) / 1000;
	      },
	
	      mod: function(v, l) {
	
	        while (v < 0) {
	          v += l;
	        }
	
	        return v % l;
	
	      },
	
	      /**
	       * Array like collection that triggers inserted and removed events
	       * removed : pop / shift / splice
	       * inserted : push / unshift / splice (with > 2 arguments)
	       */
	      Collection: function() {
	
	        Array.call(this);
	
	        if (arguments.length > 1) {
	          Array.prototype.push.apply(this, arguments);
	        } else if( arguments[0] && Array.isArray(arguments[0]) ) {
	          Array.prototype.push.apply(this, arguments[0]);
	        }
	
	      },
	
	      // Custom Error Throwing for Two.js
	
	      Error: function(message) {
	        this.name = 'two.js';
	        this.message = message;
	      }
	
	    }
	
	  });
	
	  Two.Utils.Error.prototype = new Error();
	  Two.Utils.Error.prototype.constructor = Two.Utils.Error;
	
	  Two.Utils.Collection.prototype = new Array();
	  Two.Utils.Collection.constructor = Two.Utils.Collection;
	
	  _.extend(Two.Utils.Collection.prototype, Backbone.Events, {
	
	    pop: function() {
	      var popped = Array.prototype.pop.apply(this, arguments);
	      this.trigger(Two.Events.remove, [popped]);
	      return popped;
	    },
	
	    shift: function() {
	      var shifted = Array.prototype.shift.apply(this, arguments);
	      this.trigger(Two.Events.remove, [shifted]);
	      return shifted;
	    },
	
	    push: function() {
	      var pushed = Array.prototype.push.apply(this, arguments);
	      this.trigger(Two.Events.insert, arguments);
	      return pushed;
	    },
	
	    unshift: function() {
	      var unshifted = Array.prototype.unshift.apply(this, arguments);
	      this.trigger(Two.Events.insert, arguments);
	      return unshifted;
	    },
	
	    splice: function() {
	      var spliced = Array.prototype.splice.apply(this, arguments);
	      var inserted;
	
	      this.trigger(Two.Events.remove, spliced);
	
	      if (arguments.length > 2) {
	        inserted = this.slice(arguments[0], arguments.length-2);
	        this.trigger(Two.Events.insert, inserted);
	      }
	      return spliced;
	    }
	
	  });
	
	  // Localize utils
	
	  var distanceBetween = Two.Utils.distanceBetween,
	    distanceBetweenSquared = Two.Utils.distanceBetweenSquared,
	    angleBetween = Two.Utils.angleBetween,
	    getControlPoints = Two.Utils.getControlPoints,
	    getCurveFromPoints = Two.Utils.getCurveFromPoints,
	    solveSegmentIntersection = Two.Utils.solveSegmentIntersection,
	    decoupleShapes = Two.Utils.decoupleShapes,
	    mod = Two.Utils.mod,
	    getBackingStoreRatio = Two.Utils.getBackingStoreRatio,
	    getPointOnCubicBezier = Two.Utils.getPointOnCubicBezier,
	    getCurveLength = Two.Utils.getCurveLength,
	    integrate = Two.Utils.integrate,
	    getReflection = Two.Utils.getReflection;
	
	  _.extend(Two.prototype, Backbone.Events, {
	
	    appendTo: function(elem) {
	
	      elem.appendChild(this.renderer.domElement);
	      return this;
	
	    },
	
	    play: function() {
	
	      Two.Utils.setPlaying.call(this, true);
	      return this.trigger(Two.Events.play);
	
	    },
	
	    pause: function() {
	
	      this.playing = false;
	      return this.trigger(Two.Events.pause);
	
	    },
	
	    /**
	     * Update positions and calculations in one pass before rendering.
	     */
	    update: function() {
	
	      var animated = !!this._lastFrame;
	      var now = getNow();
	
	      this.frameCount++;
	
	      if (animated) {
	        this.timeDelta = parseFloat((now - this._lastFrame).toFixed(3));
	      }
	      this._lastFrame = now;
	
	      var width = this.width;
	      var height = this.height;
	      var renderer = this.renderer;
	
	      // Update width / height for the renderer
	      if (width !== renderer.width || height !== renderer.height) {
	        renderer.setSize(width, height, this.ratio);
	      }
	
	      this.trigger(Two.Events.update, this.frameCount, this.timeDelta);
	
	      return this.render();
	
	    },
	
	    /**
	     * Render all drawable - visible objects of the scene.
	     */
	    render: function() {
	
	      this.renderer.render();
	      return this.trigger(Two.Events.render, this.frameCount);
	
	    },
	
	    /**
	     * Convenience Methods
	     */
	
	    add: function(o) {
	
	      var objects = o;
	      if (!_.isArray(o)) {
	        objects = _.toArray(arguments);
	      }
	
	      this.scene.add(objects);
	      return this;
	
	    },
	
	    remove: function(o) {
	
	      var objects = o;
	      if (!_.isArray(o)) {
	        objects = _.toArray(arguments);
	      }
	
	      this.scene.remove(objects);
	
	      return this;
	
	    },
	
	    clear: function() {
	
	      this.scene.remove(_.toArray(this.scene.children));
	      return this;
	
	    },
	
	    makeLine: function(x1, y1, x2, y2) {
	
	      var width = x2 - x1;
	      var height = y2 - y1;
	
	      var w2 = width / 2;
	      var h2 = height / 2;
	
	      var points = [
	        new Two.Anchor(- w2, - h2),
	        new Two.Anchor(w2, h2)
	      ];
	
	      // Center line and translate to desired position.
	
	      var line = new Two.Polygon(points).noFill();
	      line.translation.set(x1 + w2, y1 + h2);
	
	      this.scene.add(line);
	      return line;
	
	    },
	
	    makeRectangle: function(x, y, width, height) {
	
	      var w2 = width / 2;
	      var h2 = height / 2;
	
	      var points = [
	        new Two.Anchor(-w2, -h2),
	        new Two.Anchor(w2, -h2),
	        new Two.Anchor(w2, h2),
	        new Two.Anchor(-w2, h2)
	      ];
	
	      var rect = new Two.Polygon(points, true);
	      rect.translation.set(x, y);
	
	      this.scene.add(rect);
	      return rect;
	
	    },
	
	    makeCircle: function(ox, oy, r) {
	
	      return this.makeEllipse(ox, oy, r, r);
	
	    },
	
	    makeEllipse: function(ox, oy, width, height) {
	
	      var amount = Two.Resolution;
	
	      var points = _.map(_.range(amount), function(i) {
	        var pct = i / amount;
	        var theta = pct * TWO_PI;
	        var x = width * cos(theta);
	        var y = height * sin(theta);
	        return new Two.Anchor(x, y);
	      }, this);
	
	      var ellipse = new Two.Polygon(points, true, true);
	      ellipse.translation.set(ox, oy);
	
	      this.scene.add(ellipse);
	
	      return ellipse;
	
	    },
	
	    makeCurve: function(p) {
	
	      var l = arguments.length, points = p;
	      if (!_.isArray(p)) {
	        points = [];
	        for (var i = 0; i < l; i+=2) {
	          var x = arguments[i];
	          if (!_.isNumber(x)) {
	            break;
	          }
	          var y = arguments[i + 1];
	          points.push(new Two.Anchor(x, y));
	        }
	      }
	
	      var last = arguments[l - 1];
	      var poly = new Two.Polygon(points, !(_.isBoolean(last) ? last : undefined), true);
	      var rect = poly.getBoundingClientRect();
	
	      var cx = rect.left + rect.width / 2;
	      var cy = rect.top + rect.height / 2;
	
	      _.each(poly.vertices, function(v) {
	        v.x -= cx;
	        v.y -= cy;
	      });
	
	      poly.translation.set(cx, cy);
	
	      this.scene.add(poly);
	
	      return poly;
	
	    },
	
	    /**
	     * Convenience method to make and draw a Two.Polygon.
	     */
	    makePolygon: function(p) {
	
	      var l = arguments.length, points = p;
	      if (!_.isArray(p)) {
	        points = [];
	        for (var i = 0; i < l; i+=2) {
	          var x = arguments[i];
	          if (!_.isNumber(x)) {
	            break;
	          }
	          var y = arguments[i + 1];
	          points.push(new Two.Anchor(x, y));
	        }
	      }
	
	      var last = arguments[l - 1];
	      var poly = new Two.Polygon(points, !(_.isBoolean(last) ? last : undefined));
	      var rect = poly.getBoundingClientRect();
	      poly.center().translation
	        .set(rect.left + rect.width / 2, rect.top + rect.height / 2);
	
	      this.scene.add(poly);
	
	      return poly;
	
	    },
	
	    makeGroup: function(o) {
	
	      var objects = o;
	      if (!_.isArray(o)) {
	        objects = _.toArray(arguments);
	      }
	
	      var group = new Two.Group();
	      this.scene.add(group);
	      group.add(objects);
	
	      return group;
	
	    },
	
	    // Utility Functions will go here.
	
	    /**
	     * Interpret an SVG Node and add it to this instance's scene. The
	     * distinction should be made that this doesn't `import` svg's, it solely
	     * interprets them into something compatible for Two.js — this is slightly
	     * different than a direct transcription.
	     *
	     * @param {Object} svgNode - The node to be parsed
	     * @param {Boolean} noWrappingGroup - Don't create a top-most group but
	     *                                    append all contents directly
	     */
	    interpret: function(svgNode, noWrapInGroup) {
	
	      var tag = svgNode.tagName.toLowerCase();
	
	      if (!(tag in Two.Utils.read)) {
	        return null;
	      }
	
	      var node = Two.Utils.read[tag].call(this, svgNode);
	
	      if (noWrapInGroup && node instanceof Two.Group) {
	        this.add(_.values(node.children));
	      } else {
	        this.add(node);
	      }
	
	      return node;
	
	    }
	
	  });
	
	  function fitToWindow() {
	
	    var wr = document.body.getBoundingClientRect();
	
	    var width = this.width = wr.width;
	    var height = this.height = wr.height;
	
	    this.renderer.setSize(width, height, this.ratio);
	    this.trigger(Two.Events.resize, width, height);
	
	  }
	
	  function getNow() {
	    return ((root.performance && root.performance.now)
	      ? root.performance : Date).now();
	  }
	
	  // Request Animation Frame
	
	  (function() {
	
	    requestAnimationFrame(arguments.callee);
	
	    Two.Instances.forEach(function(t) {
	
	      if (t.playing) {
	        t.update();
	      }
	
	    });
	
	  })();
	
	  //exports to multiple environments
	  if (true)
	  //AMD
	  !(__WEBPACK_AMD_DEFINE_RESULT__ = function(){ return Two; }.call(exports, __webpack_require__, exports, module), __WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
	  else if (typeof module != "undefined" && module.exports)
	  //Node
	  module.exports = Two;
	
	})();
	
	(function(Two) {
	
	  var Vector = Two.Vector = function(x, y) {
	
	    this.x = x || 0;
	    this.y = y || 0;
	
	  };
	
	  _.extend(Vector, {
	
	    zero: new Two.Vector()
	
	  });
	
	  _.extend(Vector.prototype, Backbone.Events, {
	
	    set: function(x, y) {
	      this.x = x;
	      this.y = y;
	      return this;
	    },
	
	    copy: function(v) {
	      this.x = v.x;
	      this.y = v.y;
	      return this;
	    },
	
	    clear: function() {
	      this.x = 0;
	      this.y = 0;
	      return this;
	    },
	
	    clone: function() {
	      return new Vector(this.x, this.y);
	    },
	
	    add: function(v1, v2) {
	      this.x = v1.x + v2.x;
	      this.y = v1.y + v2.y;
	      return this;
	    },
	
	    addSelf: function(v) {
	      this.x += v.x;
	      this.y += v.y;
	      return this;
	    },
	
	    sub: function(v1, v2) {
	      this.x = v1.x - v2.x;
	      this.y = v1.y - v2.y;
	      return this;
	    },
	
	    subSelf: function(v) {
	      this.x -= v.x;
	      this.y -= v.y;
	      return this;
	    },
	
	    multiplySelf: function(v) {
	      this.x *= v.x;
	      this.y *= v.y;
	      return this;
	    },
	
	    multiplyScalar: function(s) {
	      this.x *= s;
	      this.y *= s;
	      return this;
	    },
	
	    divideScalar: function(s) {
	      if (s) {
	        this.x /= s;
	        this.y /= s;
	      } else {
	        this.set(0, 0);
	      }
	      return this;
	    },
	
	    negate: function() {
	      return this.multiplyScalar(-1);
	    },
	
	    dot: function(v) {
	      return this.x * v.x + this.y * v.y;
	    },
	
	    lengthSquared: function() {
	      return this.x * this.x + this.y * this.y;
	    },
	
	    length: function() {
	      return Math.sqrt(this.lengthSquared());
	    },
	
	    normalize: function() {
	      return this.divideScalar(this.length());
	    },
	
	    distanceTo: function(v) {
	      return Math.sqrt(this.distanceToSquared(v));
	    },
	
	    distanceToSquared: function(v) {
	      var dx = this.x - v.x,
	          dy = this.y - v.y;
	      return dx * dx + dy * dy;
	    },
	
	    setLength: function(l) {
	      return this.normalize().multiplyScalar(l);
	    },
	
	    equals: function(v) {
	      return (this.distanceTo(v) < 0.0001 /* almost same position */);
	    },
	
	    lerp: function(v, t) {
	      var x = (v.x - this.x) * t + this.x;
	      var y = (v.y - this.y) * t + this.y;
	      return this.set(x, y);
	    },
	
	    isZero: function() {
	      return (this.length() < 0.0001 /* almost zero */ );
	    },
	
	    toString: function() {
	      return this.x + ',' + this.y;
	    },
	
	    toObject: function() {
	      return { x: this.x, y: this.y };
	    }
	
	  });
	
	  var BoundProto = {
	
	    set: function(x, y) {
	      this._x = x;
	      this._y = y;
	      return this.trigger(Two.Events.change);
	    },
	
	    copy: function(v) {
	      this._x = v.x;
	      this._y = v.y;
	      return this.trigger(Two.Events.change);
	    },
	
	    clear: function() {
	      this._x = 0;
	      this._y = 0;
	      return this.trigger(Two.Events.change);
	    },
	
	    clone: function() {
	      return new Vector(this._x, this._y);
	    },
	
	    add: function(v1, v2) {
	      this._x = v1.x + v2.x;
	      this._y = v1.y + v2.y;
	      return this.trigger(Two.Events.change);
	    },
	
	    addSelf: function(v) {
	      this._x += v.x;
	      this._y += v.y;
	      return this.trigger(Two.Events.change);
	    },
	
	    sub: function(v1, v2) {
	      this._x = v1.x - v2.x;
	      this._y = v1.y - v2.y;
	      return this.trigger(Two.Events.change);
	    },
	
	    subSelf: function(v) {
	      this._x -= v.x;
	      this._y -= v.y;
	      return this.trigger(Two.Events.change);
	    },
	
	    multiplySelf: function(v) {
	      this._x *= v.x;
	      this._y *= v.y;
	      return this.trigger(Two.Events.change);
	    },
	
	    multiplyScalar: function(s) {
	      this._x *= s;
	      this._y *= s;
	      return this.trigger(Two.Events.change);
	    },
	
	    divideScalar: function(s) {
	      if (s) {
	        this._x /= s;
	        this._y /= s;
	        return this.trigger(Two.Events.change);
	      }
	      return this.clear();
	    },
	
	    negate: function() {
	      return this.multiplyScalar(-1);
	    },
	
	    dot: function(v) {
	      return this._x * v.x + this._y * v.y;
	    },
	
	    lengthSquared: function() {
	      return this._x * this._x + this._y * this._y;
	    },
	
	    length: function() {
	      return Math.sqrt(this.lengthSquared());
	    },
	
	    normalize: function() {
	      return this.divideScalar(this.length());
	    },
	
	    distanceTo: function(v) {
	      return Math.sqrt(this.distanceToSquared(v));
	    },
	
	    distanceToSquared: function(v) {
	      var dx = this._x - v.x,
	          dy = this._y - v.y;
	      return dx * dx + dy * dy;
	    },
	
	    setLength: function(l) {
	      return this.normalize().multiplyScalar(l);
	    },
	
	    equals: function(v) {
	      return (this.distanceTo(v) < 0.0001 /* almost same position */);
	    },
	
	    lerp: function(v, t) {
	      var x = (v.x - this._x) * t + this._x;
	      var y = (v.y - this._y) * t + this._y;
	      return this.set(x, y);
	    },
	
	    isZero: function() {
	      return (this.length() < 0.0001 /* almost zero */ );
	    },
	
	    toString: function() {
	      return this._x + ',' + this._y;
	    },
	
	    toObject: function() {
	      return { x: this._x, y: this._y };
	    }
	
	  };
	
	  var xgs = {
	    get: function() {
	      return this._x;
	    },
	    set: function(v) {
	      this._x = v;
	      this.trigger(Two.Events.change, 'x');
	    }
	  };
	
	  var ygs = {
	    get: function() {
	      return this._y;
	    },
	    set: function(v) {
	      this._y = v;
	      this.trigger(Two.Events.change, 'y');
	    }
	  };
	
	  /**
	   * Override Backbone bind / on in order to add properly broadcasting.
	   * This allows Two.Vector to not broadcast events unless event listeners
	   * are explicity bound to it.
	   */
	
	  Two.Vector.prototype.bind = Two.Vector.prototype.on = function() {
	
	    if (!this._bound) {
	      this._x = this.x;
	      this._y = this.y;
	      Object.defineProperty(this, 'x', xgs);
	      Object.defineProperty(this, 'y', ygs);
	      _.extend(this, BoundProto);
	      this._bound = true; // Reserved for event initialization check
	    }
	
	    Backbone.Events.bind.apply(this, arguments);
	
	    return this;
	
	  };
	
	})(Two);
	
	(function(Two) {
	
	  // Localized variables
	  var commands = Two.Commands;
	
	  /**
	   * An object that holds 3 `Two.Vector`s, the anchor point and its
	   * corresponding handles: `left` and `right`.
	   */
	  var Anchor = Two.Anchor = function(x, y, ux, uy, vx, vy, command) {
	
	    Two.Vector.call(this, x, y);
	
	    this._broadcast = _.bind(function() {
	      this.trigger(Two.Events.change);
	    }, this);
	
	    this._command = command || commands.move;
	    this._relative = true;
	
	    if (!command) {
	      return this;
	    }
	
	    Anchor.AppendCurveProperties(this);
	
	    if (_.isNumber(ux)) {
	      this.controls.left.x = ux;
	    }
	    if (_.isNumber(uy)) {
	      this.controls.left.y = uy;
	    }
	    if (_.isNumber(vx)) {
	      this.controls.right.x = vx;
	    }
	    if (_.isNumber(vy)) {
	      this.controls.right.y = vy;
	    }
	
	  };
	
	  _.extend(Anchor, {
	
	    AppendCurveProperties: function(anchor) {
	      anchor.controls = {
	        left: new Two.Vector(0, 0),
	        right: new Two.Vector(0, 0)
	      };
	    }
	
	  });
	
	  var AnchorProto = {
	
	    listen: function() {
	
	      if (!_.isObject(this.controls)) {
	        Anchor.AppendCurveProperties(this);
	      }
	
	      this.controls.left.bind(Two.Events.change, this._broadcast);
	      this.controls.right.bind(Two.Events.change, this._broadcast);
	
	      return this;
	
	    },
	
	    ignore: function() {
	
	      this.controls.left.unbind(Two.Events.change, this._broadcast);
	      this.controls.right.unbind(Two.Events.change, this._broadcast);
	
	      return this;
	
	    },
	
	    clone: function() {
	
	      var controls = this.controls;
	
	      var clone = new Two.Anchor(
	        this.x,
	        this.y,
	        controls && controls.left.x,
	        controls && controls.left.y,
	        controls && controls.right.x,
	        controls && controls.right.y,
	        this.command
	      );
	      clone.relative = this._relative;
	      return clone;
	
	    },
	
	    toObject: function() {
	      var o = {
	        x: this.x,
	        y: this.y
	      };
	      if (this._command) {
	        o.command = this._command;
	      }
	      if (this._relative) {
	        o.relative = this._relative;
	      }
	      if (this.controls) {
	        o.controls = {
	          left: this.controls.left.toObject(),
	          right: this.controls.right.toObject()
	        };
	      }
	      return o;
	    }
	
	  };
	
	  Object.defineProperty(Anchor.prototype, 'command', {
	
	    get: function() {
	      return this._command;
	    },
	
	    set: function(c) {
	      this._command = c;
	      if (this._command === commands.curve && !_.isObject(this.controls)) {
	        Anchor.AppendCurveProperties(this);
	      }
	      return this.trigger(Two.Events.change);
	    }
	
	  });
	
	  Object.defineProperty(Anchor.prototype, 'relative', {
	
	    get: function() {
	      return this._relative;
	    },
	
	    set: function(b) {
	      if (this._relative == b) {
	        return this;
	      }
	      this._relative = !!b;
	      return this.trigger(Two.Events.change);
	    }
	
	  });
	
	  _.extend(Anchor.prototype, Two.Vector.prototype, AnchorProto);
	
	  // Make it possible to bind and still have the Anchor specific
	  // inheritance from Two.Vector
	  Two.Anchor.prototype.bind = Two.Anchor.prototype.on = function() {
	    Two.Vector.prototype.bind.apply(this, arguments);
	    _.extend(this, AnchorProto);
	  };
	
	  Two.Anchor.prototype.unbind = Two.Anchor.prototype.off = function() {
	    Two.Vector.prototype.unbind.apply(this, arguments);
	    _.extend(this, AnchorProto);
	  };
	
	})(Two);
	
	(function(Two) {
	
	  /**
	   * Constants
	   */
	  var cos = Math.cos, sin = Math.sin, tan = Math.tan;
	
	  /**
	   * Two.Matrix contains an array of elements that represent
	   * the two dimensional 3 x 3 matrix as illustrated below:
	   *
	   * =====
	   * a b c
	   * d e f
	   * g h i  // this row is not really used in 2d transformations
	   * =====
	   *
	   * String order is for transform strings: a, d, b, e, c, f
	   *
	   * @class
	   */
	  var Matrix = Two.Matrix = function(a, b, c, d, e, f) {
	
	    this.elements = new Two.Array(9);
	
	    var elements = a;
	    if (!_.isArray(elements)) {
	      elements = _.toArray(arguments);
	    }
	
	    // initialize the elements with default values.
	
	    this.identity().set(elements);
	
	  };
	
	  _.extend(Matrix, {
	
	    Identity: [
	      1, 0, 0,
	      0, 1, 0,
	      0, 0, 1
	    ],
	
	    /**
	     * Multiply two matrix 3x3 arrays
	     */
	    Multiply: function(A, B, C) {
	
	      if (B.length <= 3) { // Multiply Vector
	
	        var x, y, z, e = A;
	
	        var a = B[0] || 0,
	            b = B[1] || 0,
	            c = B[2] || 0;
	
	        // Go down rows first
	        // a, d, g, b, e, h, c, f, i
	
	        x = e[0] * a + e[1] * b + e[2] * c;
	        y = e[3] * a + e[4] * b + e[5] * c;
	        z = e[6] * a + e[7] * b + e[8] * c;
	
	        return { x: x, y: y, z: z };
	
	      }
	
	      var A0 = A[0], A1 = A[1], A2 = A[2];
	      var A3 = A[3], A4 = A[4], A5 = A[5];
	      var A6 = A[6], A7 = A[7], A8 = A[8];
	
	      var B0 = B[0], B1 = B[1], B2 = B[2];
	      var B3 = B[3], B4 = B[4], B5 = B[5];
	      var B6 = B[6], B7 = B[7], B8 = B[8];
	
	      C = C || new Two.Array(9);
	
	      C[0] = A0 * B0 + A1 * B3 + A2 * B6;
	      C[1] = A0 * B1 + A1 * B4 + A2 * B7;
	      C[2] = A0 * B2 + A1 * B5 + A2 * B8;
	      C[3] = A3 * B0 + A4 * B3 + A5 * B6;
	      C[4] = A3 * B1 + A4 * B4 + A5 * B7;
	      C[5] = A3 * B2 + A4 * B5 + A5 * B8;
	      C[6] = A6 * B0 + A7 * B3 + A8 * B6;
	      C[7] = A6 * B1 + A7 * B4 + A8 * B7;
	      C[8] = A6 * B2 + A7 * B5 + A8 * B8;
	
	      return C;
	
	    }
	
	  });
	
	  _.extend(Matrix.prototype, Backbone.Events, {
	
	    /**
	     * Takes an array of elements or the arguments list itself to
	     * set and update the current matrix's elements. Only updates
	     * specified values.
	     */
	    set: function(a) {
	
	      var elements = a;
	      if (!_.isArray(elements)) {
	        elements = _.toArray(arguments);
	      }
	
	      _.extend(this.elements, elements);
	
	      return this.trigger(Two.Events.change);
	
	    },
	
	    /**
	     * Turn matrix to identity, like resetting.
	     */
	    identity: function() {
	
	      this.set(Matrix.Identity);
	
	      return this;
	
	    },
	
	    /**
	     * Multiply scalar or multiply by another matrix.
	     */
	    multiply: function(a, b, c, d, e, f, g, h, i) {
	
	      var elements = arguments, l = elements.length;
	
	      // Multiply scalar
	
	      if (l <= 1) {
	
	        _.each(this.elements, function(v, i) {
	          this.elements[i] = v * a;
	        }, this);
	
	        return this.trigger(Two.Events.change);
	
	      }
	
	      if (l <= 3) { // Multiply Vector
	
	        var x, y, z;
	        a = a || 0;
	        b = b || 0;
	        c = c || 0;
	        e = this.elements;
	
	        // Go down rows first
	        // a, d, g, b, e, h, c, f, i
	
	        x = e[0] * a + e[1] * b + e[2] * c;
	        y = e[3] * a + e[4] * b + e[5] * c;
	        z = e[6] * a + e[7] * b + e[8] * c;
	
	        return { x: x, y: y, z: z };
	
	      }
	
	      // Multiple matrix
	
	      var A = this.elements;
	      var B = elements;
	
	      var A0 = A[0], A1 = A[1], A2 = A[2];
	      var A3 = A[3], A4 = A[4], A5 = A[5];
	      var A6 = A[6], A7 = A[7], A8 = A[8];
	
	      var B0 = B[0], B1 = B[1], B2 = B[2];
	      var B3 = B[3], B4 = B[4], B5 = B[5];
	      var B6 = B[6], B7 = B[7], B8 = B[8];
	
	      this.elements[0] = A0 * B0 + A1 * B3 + A2 * B6;
	      this.elements[1] = A0 * B1 + A1 * B4 + A2 * B7;
	      this.elements[2] = A0 * B2 + A1 * B5 + A2 * B8;
	
	      this.elements[3] = A3 * B0 + A4 * B3 + A5 * B6;
	      this.elements[4] = A3 * B1 + A4 * B4 + A5 * B7;
	      this.elements[5] = A3 * B2 + A4 * B5 + A5 * B8;
	
	      this.elements[6] = A6 * B0 + A7 * B3 + A8 * B6;
	      this.elements[7] = A6 * B1 + A7 * B4 + A8 * B7;
	      this.elements[8] = A6 * B2 + A7 * B5 + A8 * B8;
	
	      return this.trigger(Two.Events.change);
	
	    },
	
	    inverse: function(out) {
	
	      var a = this.elements;
	      out = out || new Two.Matrix();
	
	      var a00 = a[0], a01 = a[1], a02 = a[2];
	      var a10 = a[3], a11 = a[4], a12 = a[5];
	      var a20 = a[6], a21 = a[7], a22 = a[8];
	
	      var b01 = a22 * a11 - a12 * a21;
	      var b11 = -a22 * a10 + a12 * a20;
	      var b21 = a21 * a10 - a11 * a20;
	
	      // Calculate the determinant
	      var det = a00 * b01 + a01 * b11 + a02 * b21;
	
	      if (!det) {
	        return null;
	      }
	
	      det = 1.0 / det;
	
	      out.elements[0] = b01 * det;
	      out.elements[1] = (-a22 * a01 + a02 * a21) * det;
	      out.elements[2] = (a12 * a01 - a02 * a11) * det;
	      out.elements[3] = b11 * det;
	      out.elements[4] = (a22 * a00 - a02 * a20) * det;
	      out.elements[5] = (-a12 * a00 + a02 * a10) * det;
	      out.elements[6] = b21 * det;
	      out.elements[7] = (-a21 * a00 + a01 * a20) * det;
	      out.elements[8] = (a11 * a00 - a01 * a10) * det;
	
	      return out;
	
	    },
	
	    /**
	     * Set a scalar onto the matrix.
	     */
	    scale: function(sx, sy) {
	
	      var l = arguments.length;
	      if (l <= 1) {
	        sy = sx;
	      }
	
	      return this.multiply(sx, 0, 0, 0, sy, 0, 0, 0, 1);
	
	    },
	
	    /**
	     * Rotate the matrix.
	     */
	    rotate: function(radians) {
	
	      var c = cos(radians);
	      var s = sin(radians);
	
	      return this.multiply(c, -s, 0, s, c, 0, 0, 0, 1);
	
	    },
	
	    /**
	     * Translate the matrix.
	     */
	    translate: function(x, y) {
	
	      return this.multiply(1, 0, x, 0, 1, y, 0, 0, 1);
	
	    },
	
	    /*
	     * Skew the matrix by an angle in the x axis direction.
	     */
	    skewX: function(radians) {
	
	      var a = tan(radians);
	
	      return this.multiply(1, a, 0, 0, 1, 0, 0, 0, 1);
	
	    },
	
	    /*
	     * Skew the matrix by an angle in the y axis direction.
	     */
	    skewY: function(radians) {
	
	      var a = tan(radians);
	
	      return this.multiply(1, 0, 0, a, 1, 0, 0, 0, 1);
	
	    },
	
	    /**
	     * Create a transform string to be used with rendering apis.
	     */
	    toString: function(fullMatrix) {
	      var temp = [];
	
	      this.toArray(fullMatrix, temp);
	
	      return temp.join(' ');
	
	    },
	
	    /**
	     * Create a transform array to be used with rendering apis.
	     */
	    toArray: function(fullMatrix, output) {
	
	     var elements = this.elements;
	     var hasOutput = !!output;
	
	     var a = parseFloat(elements[0].toFixed(3));
	     var b = parseFloat(elements[1].toFixed(3));
	     var c = parseFloat(elements[2].toFixed(3));
	     var d = parseFloat(elements[3].toFixed(3));
	     var e = parseFloat(elements[4].toFixed(3));
	     var f = parseFloat(elements[5].toFixed(3));
	
	      if (!!fullMatrix) {
	
	        var g = parseFloat(elements[6].toFixed(3));
	        var h = parseFloat(elements[7].toFixed(3));
	        var i = parseFloat(elements[8].toFixed(3));
	
	        if (hasOutput) {
	          output[0] = a;
	          output[1] = d;
	          output[2] = g;
	          output[3] = b;
	          output[4] = e;
	          output[5] = h;
	          output[6] = c;
	          output[7] = f;
	          output[8] = i;
	          return;
	        }
	
	        return [
	          a, d, g, b, e, h, c, f, i
	        ];
	      }
	
	      if (hasOutput) {
	        output[0] = a;
	        output[1] = d;
	        output[2] = b;
	        output[3] = e;
	        output[4] = c;
	        output[5] = f;
	        return;
	      }
	
	      return [
	        a, d, b, e, c, f  // Specific format see LN:19
	      ];
	
	    },
	
	    /**
	     * Clone the current matrix.
	     */
	    clone: function() {
	      var a, b, c, d, e, f, g, h, i;
	
	      a = this.elements[0];
	      b = this.elements[1];
	      c = this.elements[2];
	      d = this.elements[3];
	      e = this.elements[4];
	      f = this.elements[5];
	      g = this.elements[6];
	      h = this.elements[7];
	      i = this.elements[8];
	
	      return new Two.Matrix(a, b, c, d, e, f, g, h, i);
	
	    }
	
	  });
	
	})(Two);
	
	(function(Two) {
	
	  // Localize variables
	  var mod = Two.Utils.mod, toFixed = Two.Utils.toFixed;
	
	  var svg = {
	
	    version: 1.1,
	
	    ns: 'http://www.w3.org/2000/svg',
	    xlink: 'http://www.w3.org/1999/xlink',
	
	    /**
	     * Create an svg namespaced element.
	     */
	    createElement: function(name, attrs) {
	      var tag = name;
	      var elem = document.createElementNS(this.ns, tag);
	      if (tag === 'svg') {
	        attrs = _.defaults(attrs || {}, {
	          version: this.version
	        });
	      }
	      if (_.isObject(attrs)) {
	        svg.setAttributes(elem, attrs);
	      }
	      return elem;
	    },
	
	    /**
	     * Add attributes from an svg element.
	     */
	    setAttributes: function(elem, attrs) {
	      for (var key in attrs) {
	        elem.setAttribute(key, attrs[key]);
	      }
	      return this;
	    },
	
	    /**
	     * Remove attributes from an svg element.
	     */
	    removeAttributes: function(elem, attrs) {
	      for (var key in attrs) {
	        elem.removeAttribute(key);
	      }
	      return this;
	    },
	
	    /**
	     * Turn a set of vertices into a string for the d property of a path
	     * element. It is imperative that the string collation is as fast as
	     * possible, because this call will be happening multiple times a
	     * second.
	     */
	    toString: function(points, closed) {
	
	      var l = points.length,
	        last = l - 1,
	        d, // The elusive last Two.Commands.move point
	        ret = '';
	
	      for (var i = 0; i < l; i++) {
	        var b = points[i];
	        var command;
	        var prev = closed ? mod(i - 1, l) : Math.max(i - 1, 0);
	        var next = closed ? mod(i + 1, l) : Math.min(i + 1, last);
	
	        var a = points[prev];
	        var c = points[next];
	
	        var vx, vy, ux, uy, ar, bl, br, cl;
	
	        // Access x and y directly,
	        // bypassing the getter
	        var x = toFixed(b._x);
	        var y = toFixed(b._y);
	
	        switch (b._command) {
	
	          case Two.Commands.close:
	            command = Two.Commands.close;
	            break;
	
	          case Two.Commands.curve:
	
	            ar = (a.controls && a.controls.right) || a;
	            bl = (b.controls && b.controls.left) || b;
	
	            if (a._relative) {
	              vx = toFixed((ar.x + a.x));
	              vy = toFixed((ar.y + a.y));
	            } else {
	              vx = toFixed(ar.x);
	              vy = toFixed(ar.y);
	            }
	
	            if (b._relative) {
	              ux = toFixed((bl.x + b.x));
	              uy = toFixed((bl.y + b.y));
	            } else {
	              ux = toFixed(bl.x);
	              uy = toFixed(bl.y);
	            }
	
	            command = ((i === 0) ? Two.Commands.move : Two.Commands.curve) +
	              ' ' + vx + ' ' + vy + ' ' + ux + ' ' + uy + ' ' + x + ' ' + y;
	            break;
	
	          case Two.Commands.move:
	            d = b;
	            command = Two.Commands.move + ' ' + x + ' ' + y;
	            break;
	
	          default:
	            command = b._command + ' ' + x + ' ' + y;
	
	        }
	
	        // Add a final point and close it off
	
	        if (i >= last && closed) {
	
	          if (b._command === Two.Commands.curve) {
	
	            // Make sure we close to the most previous Two.Commands.move
	            c = d;
	
	            br = (b.controls && b.controls.right) || b;
	            cl = (c.controls && c.controls.left) || c;
	
	            if (b._relative) {
	              vx = toFixed((br.x + b.x));
	              vy = toFixed((br.y + b.y));
	            } else {
	              vx = toFixed(br.x);
	              vy = toFixed(br.y);
	            }
	
	            if (c._relative) {
	              ux = toFixed((cl.x + c.x));
	              uy = toFixed((cl.y + c.y));
	            } else {
	              ux = toFixed(cl.x);
	              uy = toFixed(cl.y);
	            }
	
	            x = toFixed(c.x);
	            y = toFixed(c.y);
	
	            command +=
	              ' C ' + vx + ' ' + vy + ' ' + ux + ' ' + uy + ' ' + x + ' ' + y;
	          }
	
	          command += ' Z';
	
	        }
	
	        ret += command + ' ';
	
	      }
	
	      return ret;
	
	    },
	
	    getClip: function(shape) {
	
	      clip = shape._renderer.clip;
	
	      if (!clip) {
	
	        root = shape;
	
	        while (root.parent) {
	          root = root.parent;
	        }
	
	        clip = shape._renderer.clip = svg.createElement('clipPath');
	        root.defs.appendChild(clip);
	
	      }
	
	      return clip;
	
	    },
	
	    group: {
	
	      // TODO: Can speed up.
	      // TODO: How does this effect a f
	      appendChild: function(id) {
	
	        var elem = this.domElement.querySelector('#' + id);
	
	        if (!elem) {
	          return;
	        }
	
	        var tag = elem.nodeName;
	
	        if (!tag) {
	          return;
	        }
	
	        var tagName = tag.replace(/svg\:/ig, '').toLowerCase();
	
	        // Defer additions while clipping
	        if (/clippath/.test(tagName)) {
	          return;
	        }
	
	        this.elem.appendChild(elem);
	
	      },
	
	      // TODO: Can speed up.
	      removeChild: function(id) {
	
	        var elem = this.domElement.querySelector('#' + id);
	
	        if (!elem) {
	          return;
	        }
	
	        var tag = elem.nodeName;
	
	        if (!tag) {
	          return;
	        }
	
	        var tagName = tag.replace(/svg\:/ig, '').toLowerCase();
	
	        // Defer subtractions while clipping
	        if (/clippath/.test(tagName)) {
	          return;
	        }
	
	        this.elem.removeChild(elem);
	
	      },
	
	      renderChild: function(child) {
	        svg[child._renderer.type].render.call(child, this);
	      },
	
	      render: function(domElement) {
	
	        this._update();
	
	        // Shortcut for hidden objects.
	        // Doesn't reset the flags, so changes are stored and
	        // applied once the object is visible again
	        if (this._opacity === 0 && !this._flagOpacity) {
	          return this;
	        }
	
	        if (!this._renderer.elem) {
	          this._renderer.elem = svg.createElement('g', {
	            id: this.id
	          });
	          domElement.appendChild(this._renderer.elem);
	        }
	
	        // _Update styles for the <g>
	        var flagMatrix = this._matrix.manual || this._flagMatrix;
	        var context = {
	          domElement: domElement,
	          elem: this._renderer.elem
	        };
	
	        if (flagMatrix) {
	          this._renderer.elem.setAttribute('transform', 'matrix(' + this._matrix.toString() + ')');
	        }
	
	        for (var id in this.children) {
	          var child = this.children[id];
	          svg[child._renderer.type].render.call(child, domElement);
	        }
	
	        if (this._flagOpacity) {
	          this._renderer.elem.setAttribute('opacity', this._opacity);
	        }
	
	        if (this._flagAdditions) {
	          _.each(this.additions, svg.group.appendChild, context);
	        }
	
	        if (this._flagSubtractions) {
	          _.each(this.subtractions, svg.group.removeChild, context);
	        }
	
	        /**
	         * Commented two-way functionality of clips / masks with groups and
	         * polygons. Uncomment when this bug is fixed:
	         * https://code.google.com/p/chromium/issues/detail?id=370951
	         */
	
	        // if (this._flagClip) {
	
	        //   clip = svg.getClip(this);
	        //   elem = this._renderer.elem;
	
	        //   if (this._clip) {
	        //     elem.removeAttribute('id');
	        //     clip.setAttribute('id', this.id);
	        //     clip.appendChild(elem);
	        //   } else {
	        //     clip.removeAttribute('id');
	        //     elem.setAttribute('id', this.id);
	        //     this.parent._renderer.elem.appendChild(elem); // TODO: should be insertBefore
	        //   }
	
	        // }
	
	        if (this._flagMask) {
	          if (this._mask) {
	            this._renderer.elem.setAttribute('clip-path', 'url(#' + this._mask.id + ')');
	          } else {
	            this._renderer.elem.removeAttribute('clip-path');
	          }
	        }
	
	        return this.flagReset();
	
	      }
	
	    },
	
	    polygon: {
	
	      render: function(domElement) {
	
	        this._update();
	
	        // Shortcut for hidden objects.
	        // Doesn't reset the flags, so changes are stored and
	        // applied once the object is visible again
	        if (this._opacity === 0 && !this._flagOpacity) {
	          return this;
	        }
	
	        // Collect any attribute that needs to be changed here
	        var changed = {};
	
	        var flagMatrix = this._matrix.manual || this._flagMatrix;
	
	        if (flagMatrix) {
	          changed.transform = 'matrix(' + this._matrix.toString() + ')';
	        }
	
	        if (this._flagVertices) {
	          var vertices = svg.toString(this._vertices, this._closed);
	          changed.d = vertices;
	        }
	
	        if (this._flagFill) {
	          changed.fill = this._fill;
	        }
	
	        if (this._flagStroke) {
	          changed.stroke = this._stroke;
	        }
	
	        if (this._flagLinewidth) {
	          changed['stroke-width'] = this._linewidth;
	        }
	
	        if (this._flagOpacity) {
	          changed['stroke-opacity'] = this._opacity;
	          changed['fill-opacity'] = this._opacity;
	        }
	
	        if (this._flagVisible) {
	          changed.visibility = this._visible ? 'visible' : 'hidden';
	        }
	
	        if (this._flagCap) {
	          changed['stroke-linecap'] = this._cap;
	        }
	
	        if (this._flagJoin) {
	          changed['stroke-linejoin'] = this._join;
	        }
	
	        if (this._flagMiter) {
	          changed['stroke-miterlimit'] = this.miter;
	        }
	
	        // If there is no attached DOM element yet,
	        // create it with all necessary attributes.
	        if (!this._renderer.elem) {
	
	          changed.id = this.id;
	          this._renderer.elem = svg.createElement('path', changed);
	          domElement.appendChild(this._renderer.elem);
	
	        // Otherwise apply all pending attributes
	        } else {
	          svg.setAttributes(this._renderer.elem, changed);
	        }
	
	        if (this._flagClip) {
	
	          clip = svg.getClip(this);
	          elem = this._renderer.elem;
	
	          if (this._clip) {
	            elem.removeAttribute('id');
	            clip.setAttribute('id', this.id);
	            clip.appendChild(elem);
	          } else {
	            clip.removeAttribute('id');
	            elem.setAttribute('id', this.id);
	            this.parent._renderer.elem.appendChild(elem); // TODO: should be insertBefore
	          }
	
	        }
	
	        /**
	         * Commented two-way functionality of clips / masks with groups and
	         * polygons. Uncomment when this bug is fixed:
	         * https://code.google.com/p/chromium/issues/detail?id=370951
	         */
	
	        // if (this._flagMask) {
	        //   if (this._mask) {
	        //     elem.setAttribute('clip-path', 'url(#' + this._mask.id + ')');
	        //   } else {
	        //     elem.removeAttribute('clip-path');
	        //   }
	        // }
	
	        return this.flagReset();
	
	      }
	
	    }
	
	  };
	
	  /**
	   * @class
	   */
	  var Renderer = Two[Two.Types.svg] = function(params) {
	
	    this.domElement = params.domElement || svg.createElement('svg');
	
	    this.scene = new Two.Group();
	    this.scene.parent = this;
	
	    this.defs = svg.createElement('defs');
	    this.domElement.appendChild(this.defs);
	
	  };
	
	  _.extend(Renderer, {
	
	    Utils: svg
	
	  });
	
	  _.extend(Renderer.prototype, Backbone.Events, {
	
	    setSize: function(width, height) {
	
	      this.width = width;
	      this.height = height;
	
	      svg.setAttributes(this.domElement, {
	        width: width,
	        height: height
	      });
	
	      return this;
	
	    },
	
	    render: function() {
	
	      svg.group.render.call(this.scene, this.domElement);
	
	      return this;
	
	    }
	
	  });
	
	})(Two);
	
	(function(Two) {
	
	  /**
	   * Constants
	   */
	  var mod = Two.Utils.mod, toFixed = Two.Utils.toFixed;
	  var getRatio = Two.Utils.getRatio;
	
	  var canvas = {
	
	    group: {
	
	      renderChild: function(child) {
	        canvas[child._renderer.type].render.call(child, this.ctx, true, this.clip);
	      },
	
	      render: function(ctx) {
	
	        // TODO: Add a check here to only invoke _update if need be.
	        this._update();
	
	        var matrix = this._matrix.elements;
	        var parent = this.parent;
	        this._renderer.opacity = this._opacity
	          * (parent && parent._renderer ? parent._renderer.opacity : 1);
	
	        var mask = this._mask;
	        // var clip = this._clip;
	
	        if (!this._renderer.context) {
	          this._renderer.context = {};
	        }
	
	        this._renderer.context.ctx = ctx;
	        // this._renderer.context.clip = clip;
	
	        ctx.save();
	
	        ctx.transform(
	          matrix[0], matrix[3], matrix[1], matrix[4], matrix[2], matrix[5]);
	
	        if (mask) {
	          canvas[mask._renderer.type].render.call(mask, ctx, true);
	        }
	
	        _.each(this.children, canvas.group.renderChild, this._renderer.context);
	
	        ctx.restore();
	
	       /**
	         * Commented two-way functionality of clips / masks with groups and
	         * polygons. Uncomment when this bug is fixed:
	         * https://code.google.com/p/chromium/issues/detail?id=370951
	         */
	
	        // if (clip) {
	        //   ctx.clip();
	        // }
	
	        return this.flagReset();
	
	      }
	
	    },
	
	    polygon: {
	
	      render: function(ctx, forced, parentClipped) {
	
	        var matrix, stroke, linewidth, fill, opacity, visible, cap, join, miter,
	            closed, commands, length, last, next, prev, a, c, d, ux, uy, vx, vy,
	            ar, bl, br, cl, x, y, mask, clip;
	
	        // TODO: Add a check here to only invoke _update if need be.
	        this._update();
	
	        matrix = this._matrix.elements;
	        stroke = this._stroke;
	        linewidth = this._linewidth;
	        fill = this._fill;
	        opacity = this._opacity * this.parent._renderer.opacity;
	        visible = this._visible;
	        cap = this._cap;
	        join = this._join;
	        miter = this._miter;
	        closed = this._closed;
	        commands = this._vertices; // Commands
	        length = commands.length;
	        last = length - 1;
	
	        // mask = this._mask;
	        clip = this._clip;
	
	        if (!forced && (!visible || clip)) {
	          return this;
	        }
	
	        // Transform
	
	        ctx.save();
	
	        if (matrix) {
	          ctx.transform(
	            matrix[0], matrix[3], matrix[1], matrix[4], matrix[2], matrix[5]);
	        }
	
	       /**
	         * Commented two-way functionality of clips / masks with groups and
	         * polygons. Uncomment when this bug is fixed:
	         * https://code.google.com/p/chromium/issues/detail?id=370951
	         */
	
	        // if (mask) {
	        //   canvas[mask._renderer.type].render.call(mask, ctx, true);
	        // }
	
	        // Styles
	
	        if (fill) {
	          ctx.fillStyle = fill;
	        }
	        if (stroke) {
	          ctx.strokeStyle = stroke;
	        }
	        if (linewidth) {
	          ctx.lineWidth = linewidth;
	        }
	        if (miter) {
	          ctx.miterLimit = miter;
	        }
	        if (join) {
	          ctx.lineJoin = join;
	        }
	        if (cap) {
	          ctx.lineCap = cap;
	        }
	        if (_.isNumber(opacity)) {
	          ctx.globalAlpha = opacity;
	        }
	
	        ctx.beginPath();
	        commands.forEach(function(b, i) {
	
	          x = toFixed(b.x);
	          y = toFixed(b.y);
	
	          switch (b._command) {
	
	            case Two.Commands.close:
	              ctx.closePath();
	              break;
	
	            case Two.Commands.curve:
	
	              prev = closed ? mod(i - 1, length) : Math.max(i - 1, 0);
	              next = closed ? mod(i + 1, length) : Math.min(i + 1, last);
	
	              a = commands[prev];
	              c = commands[next];
	              ar = (a.controls && a.controls.right) || a;
	              bl = (b.controls && b.controls.left) || b;
	
	              if (a._relative) {
	                vx = (ar.x + toFixed(a.x));
	                vy = (ar.y + toFixed(a.y));
	              } else {
	                vx = toFixed(ar.x);
	                vy = toFixed(ar.y);
	              }
	
	              if (b._relative) {
	                ux = (bl.x + toFixed(b.x));
	                uy = (bl.y + toFixed(b.y));
	              } else {
	                ux = toFixed(bl.x);
	                uy = toFixed(bl.y);
	              }
	
	              ctx.bezierCurveTo(vx, vy, ux, uy, x, y);
	
	              if (i >= last && closed) {
	
	                c = d;
	
	                br = (b.controls && b.controls.right) || b;
	                cl = (c.controls && c.controls.left) || c;
	
	                if (b._relative) {
	                  vx = (br.x + toFixed(b.x));
	                  vy = (br.y + toFixed(b.y));
	                } else {
	                  vx = toFixed(br.x);
	                  vy = toFixed(br.y);
	                }
	
	                if (c._relative) {
	                  ux = (cl.x + toFixed(c.x));
	                  uy = (cl.y + toFixed(c.y));
	                } else {
	                  ux = toFixed(cl.x);
	                  uy = toFixed(cl.y);
	                }
	
	                x = toFixed(c.x);
	                y = toFixed(c.y);
	
	                ctx.bezierCurveTo(vx, vy, ux, uy, x, y);
	
	              }
	
	              break;
	
	            case Two.Commands.line:
	              ctx.lineTo(x, y);
	              break;
	
	            case Two.Commands.move:
	              d = b;
	              ctx.moveTo(x, y);
	              break;
	
	          }
	
	        });
	
	        // Loose ends
	
	        if (closed) {
	          ctx.closePath();
	        }
	
	        if (!clip && !parentClipped) {
	          ctx.fill();
	          ctx.stroke();
	        }
	
	        ctx.restore();
	
	        if (clip && !parentClipped) {
	          ctx.clip();
	        }
	
	        return this.flagReset();
	
	      }
	
	    }
	
	  };
	
	  var Renderer = Two[Two.Types.canvas] = function(params) {
	
	    this.domElement = params.domElement || document.createElement('canvas');
	    this.ctx = this.domElement.getContext('2d');
	    this.overdraw = params.overdraw || false;
	
	    // Everything drawn on the canvas needs to be added to the scene.
	    this.scene = new Two.Group();
	    this.scene.parent = this;
	
	  };
	
	  _.extend(Renderer, {
	
	    Utils: canvas
	
	  });
	
	  _.extend(Renderer.prototype, Backbone.Events, {
	
	    setSize: function(width, height, ratio) {
	
	      this.width = width;
	      this.height = height;
	
	      this.ratio = _.isUndefined(ratio) ? getRatio(this.ctx) : ratio;
	
	      this.domElement.width = width * this.ratio;
	      this.domElement.height = height * this.ratio;
	
	      _.extend(this.domElement.style, {
	        width: width + 'px',
	        height: height + 'px'
	      });
	
	      return this;
	
	    },
	
	    render: function() {
	
	      var isOne = this.ratio === 1;
	
	      if (!isOne) {
	        this.ctx.save();
	        this.ctx.scale(this.ratio, this.ratio);
	      }
	
	      if (!this.overdraw) {
	        this.ctx.clearRect(0, 0, this.width, this.height);
	      }
	
	      canvas.group.render.call(this.scene, this.ctx);
	
	      if (!isOne) {
	        this.ctx.restore();
	      }
	
	      return this;
	
	    }
	
	  });
	
	  function resetTransform(ctx) {
	    ctx.setTransform(1, 0, 0, 1, 0, 0);
	  }
	
	})(Two);
	
	(function(Two) {
	
	  /**
	   * Constants
	   */
	
	  var multiplyMatrix = Two.Matrix.Multiply,
	    mod = Two.Utils.mod,
	    identity = [1, 0, 0, 0, 1, 0, 0, 0, 1],
	    transformation = new Two.Array(9),
	    getRatio = Two.Utils.getRatio,
	    toFixed = Two.Utils.toFixed;
	
	  var webgl = {
	
	    canvas: document.createElement('canvas'),
	
	    uv: new Two.Array([
	      0, 0,
	      1, 0,
	      0, 1,
	      0, 1,
	      1, 0,
	      1, 1
	    ]),
	
	    group: {
	
	      renderChild: function(child) {
	        webgl[child._renderer.type].render.call(child, this.gl, this.program);
	      },
	
	      render: function(gl, program) {
	
	        this._update();
	
	        var parent = this.parent;
	        var flagParentMatrix = (parent._matrix && parent._matrix.manual) || parent._flagMatrix;
	        var flagMatrix = this._matrix.manual || this._flagMatrix;
	
	        if (flagParentMatrix || flagMatrix) {
	
	          if (!this._renderer.matrix) {
	            this._renderer.matrix = new Two.Array(9);
	          }
	
	          // Reduce amount of object / array creation / deletion
	          this._matrix.toArray(true, transformation);
	
	          multiplyMatrix(transformation, parent._renderer.matrix, this._renderer.matrix);
	          this._renderer.scale = this._scale * parent._renderer.scale;
	
	          if (flagParentMatrix) {
	            this._flagMatrix = true;
	          }
	
	        }
	
	        if (this._mask) {
	
	          gl.enable(gl.STENCIL_TEST);
	          gl.stencilFunc(gl.ALWAYS, 1, 1);
	
	          gl.colorMask(false, false, false, true);
	          gl.stencilOp(gl.KEEP, gl.KEEP, gl.INCR);
	
	          webgl[this._mask._renderer.type].render.call(this._mask, gl, program, this);
	
	          gl.colorMask(true, true, true, true);
	          gl.stencilFunc(gl.NOTEQUAL, 0, 1);
	          gl.stencilOp(gl.KEEP, gl.KEEP, gl.KEEP);
	
	        }
	
	        this._flagOpacity = parent._flagOpacity || this._flagOpacity;
	
	        this._renderer.opacity = this._opacity
	          * (parent && parent._renderer ? parent._renderer.opacity : 1);
	
	        _.each(this.children, webgl.group.renderChild, {
	          gl: gl,
	          program: program
	        });
	
	        if (this._mask) {
	
	          gl.colorMask(false, false, false, false);
	          gl.stencilOp(gl.KEEP, gl.KEEP, gl.DECR);
	
	          webgl[this._mask._renderer.type].render.call(this._mask, gl, program, this);
	
	          gl.colorMask(true, true, true, true);
	          gl.stencilFunc(gl.NOTEQUAL, 0, 1);
	          gl.stencilOp(gl.KEEP, gl.KEEP, gl.KEEP);
	
	          gl.disable(gl.STENCIL_TEST);
	
	        }
	
	        return this.flagReset();
	
	      }
	
	    },
	
	    polygon: {
	
	      render: function(gl, program, forcedParent) {
	
	        if (!this._visible || !this._opacity) {
	          return this;
	        }
	
	        // Calculate what changed
	
	        var parent = this.parent;
	        var flagParentMatrix = parent._matrix.manual || parent._flagMatrix;
	        var flagMatrix = this._matrix.manual || this._flagMatrix;
	        var flagTexture = this._flagVertices || this._flagFill
	          || this._flagStroke || this._flagLinewidth || this._flagOpacity
	          || parent._flagOpacity || this._flagVisible || this._flagCap
	          || this._flagJoin || this._flagMiter || this._flagScale;
	
	        this._update();
	
	        if (flagParentMatrix || flagMatrix) {
	
	          if (!this._renderer.matrix) {
	            this._renderer.matrix = new Two.Array(9);
	          }
	
	          // Reduce amount of object / array creation / deletion
	
	          this._matrix.toArray(true, transformation);
	
	          multiplyMatrix(transformation, parent._renderer.matrix, this._renderer.matrix);
	          this._renderer.scale = this._scale * parent._renderer.scale;
	
	        }
	
	        if (flagTexture) {
	
	          if (!this._renderer.rect) {
	            this._renderer.rect = {};
	          }
	
	          if (!this._renderer.triangles) {
	            this._renderer.triangles = new Two.Array(12);
	          }
	
	          this._renderer.opacity = this._opacity * parent._renderer.opacity;
	
	          webgl.getBoundingClientRect(this._vertices, this._linewidth, this._renderer.rect);
	          webgl.getTriangles(this._renderer.rect, this._renderer.triangles);
	
	          webgl.updateBuffer(gl, this, program);
	          webgl.updateTexture(gl, this);
	
	        }
	
	        // if (this._mask) {
	        //   webgl[this._mask._renderer.type].render.call(mask, gl, program, this);
	        // }
	
	        if (this._clip && !forcedParent) {
	          return;
	        }
	
	        // Draw Texture
	
	        gl.bindBuffer(gl.ARRAY_BUFFER, this._renderer.textureCoordsBuffer);
	
	        gl.vertexAttribPointer(program.textureCoords, 2, gl.FLOAT, false, 0, 0);
	
	        gl.bindTexture(gl.TEXTURE_2D, this._renderer.texture);
	
	
	        // Draw Rect
	
	        gl.uniformMatrix3fv(program.matrix, false, this._renderer.matrix);
	
	        gl.bindBuffer(gl.ARRAY_BUFFER, this._renderer.buffer);
	
	        gl.vertexAttribPointer(program.position, 2, gl.FLOAT, false, 0, 0);
	
	        gl.drawArrays(gl.TRIANGLES, 0, 6);
	
	        return this.flagReset();
	
	      }
	
	    },
	
	    /**
	     * Returns the rect of a set of verts. Typically takes vertices that are
	     * "centered" around 0 and returns them to be anchored upper-left.
	     */
	    getBoundingClientRect: function(vertices, border, rect) {
	
	      var left = Infinity, right = -Infinity,
	          top = Infinity, bottom = -Infinity,
	          width, height;
	
	      vertices.forEach(function(v) {
	
	        var x = v.x, y = v.y, controls = v.controls;
	        var a, b, c, d, cl, cr;
	
	        top = Math.min(y, top);
	        left = Math.min(x, left);
	        right = Math.max(x, right);
	        bottom = Math.max(y, bottom);
	
	        if (!v.controls) {
	          return;
	        }
	
	        cl = controls.left;
	        cr = controls.right;
	
	        if (!cl || !cr) {
	          return;
	        }
	
	        a = v._relative ? cl.x + x : cl.x;
	        b = v._relative ? cl.y + y : cl.y;
	        c = v._relative ? cr.x + x : cr.x;
	        d = v._relative ? cr.y + y : cr.y;
	
	        if (!a || !b || !c || !d) {
	          return;
	        }
	
	        top = Math.min(b, d, top);
	        left = Math.min(a, c, left);
	        right = Math.max(a, c, right);
	        bottom = Math.max(b, d, bottom);
	
	      });
	
	      // Expand borders
	
	      if (_.isNumber(border)) {
	        top -= border;
	        left -= border;
	        right += border;
	        bottom += border;
	      }
	
	      width = right - left;
	      height = bottom - top;
	
	      rect.top = top;
	      rect.left = left;
	      rect.right = right;
	      rect.bottom = bottom;
	      rect.width = width;
	      rect.height = height;
	
	      if (!rect.centroid) {
	        rect.centroid = {};
	      }
	
	      rect.centroid.x = - left;
	      rect.centroid.y = - top;
	
	    },
	
	    getTriangles: function(rect, triangles) {
	
	      var top = rect.top,
	          left = rect.left,
	          right = rect.right,
	          bottom = rect.bottom;
	
	      // First Triangle
	
	      triangles[0] = left;
	      triangles[1] = top;
	
	      triangles[2] = right;
	      triangles[3] = top;
	
	      triangles[4] = left;
	      triangles[5] = bottom;
	
	      // Second Triangle
	
	      triangles[6] = left;
	      triangles[7] = bottom;
	
	      triangles[8] = right;
	      triangles[9] = top;
	
	      triangles[10] = right;
	      triangles[11] = bottom;
	
	    },
	
	    updateCanvas: function(elem) {
	
	      var commands = elem._vertices;
	      var canvas = this.canvas;
	      var ctx = this.ctx;
	
	      // Styles
	      var scale = elem._renderer.scale;
	      var stroke = elem._stroke;
	      var linewidth = elem._linewidth * scale;
	      var fill = elem._fill;
	      var opacity = elem._renderer.opacity || elem._opacity;
	      var cap = elem._cap;
	      var join = elem._join;
	      var miter = elem._miter;
	      var closed = elem._closed;
	      var length = commands.length;
	      var last = length - 1;
	
	      canvas.width = Math.max(Math.ceil(elem._renderer.rect.width * scale), 1);
	      canvas.height = Math.max(Math.ceil(elem._renderer.rect.height * scale), 1);
	
	      var centroid = elem._renderer.rect.centroid;
	      var cx = centroid.x * scale;
	      var cy = centroid.y * scale;
	
	      ctx.clearRect(0, 0, canvas.width, canvas.height);
	
	      if (fill) {
	        ctx.fillStyle = fill;
	      }
	      if (stroke) {
	        ctx.strokeStyle = stroke;
	      }
	      if (linewidth) {
	        ctx.lineWidth = linewidth;
	      }
	      if (miter) {
	        ctx.miterLimit = miter;
	      }
	      if (join) {
	        ctx.lineJoin = join;
	      }
	      if (cap) {
	        ctx.lineCap = cap;
	      }
	      if (_.isNumber(opacity)) {
	        ctx.globalAlpha = opacity;
	      }
	
	      var d;
	      ctx.beginPath();
	      commands.forEach(function(b, i) {
	
	        var next, prev, a, c, ux, uy, vx, vy, ar, bl, br, cl, x, y;
	        x = toFixed(b.x * scale + cx);
	        y = toFixed(b.y * scale + cy);
	
	        switch (b._command) {
	
	          case Two.Commands.close:
	            ctx.closePath();
	            break;
	
	          case Two.Commands.curve:
	
	            prev = closed ? mod(i - 1, length) : Math.max(i - 1, 0);
	            next = closed ? mod(i + 1, length) : Math.min(i + 1, last);
	
	            a = commands[prev];
	            c = commands[next];
	            ar = (a.controls && a.controls.right) || a;
	            bl = (b.controls && b.controls.left) || b;
	
	            if (a._relative) {
	              vx = toFixed((ar.x + a.x) * scale + cx);
	              vy = toFixed((ar.y + a.y) * scale + cy);
	            } else {
	              vx = toFixed(ar.x * scale + cx);
	              vy = toFixed(ar.y * scale + cy);
	            }
	
	            if (b._relative) {
	              ux = toFixed((bl.x + b.x) * scale + cx);
	              uy = toFixed((bl.y + b.y) * scale + cy);
	            } else {
	              ux = toFixed(bl.x * scale + cx);
	              uy = toFixed(bl.y * scale + cy);
	            }
	
	            ctx.bezierCurveTo(vx, vy, ux, uy, x, y);
	
	            if (i >= last && closed) {
	
	              c = d;
	
	              br = (b.controls && b.controls.right) || b;
	              cl = (c.controls && c.controls.left) || c;
	
	              if (b._relative) {
	                vx = toFixed((br.x + b.x) * scale + cx);
	                vy = toFixed((br.y + b.y) * scale + cy);
	              } else {
	                vx = toFixed(br.x * scale + cx);
	                vy = toFixed(br.y * scale + cy);
	              }
	
	              if (c._relative) {
	                ux = toFixed((cl.x + c.x) * scale + cx);
	                uy = toFixed((cl.y + c.y) * scale + cy);
	              } else {
	                ux = toFixed(cl.x * scale + cx);
	                uy = toFixed(cl.y * scale + cy);
	              }
	
	              x = toFixed(c.x * scale + cx);
	              y = toFixed(c.y * scale + cy);
	
	              ctx.bezierCurveTo(vx, vy, ux, uy, x, y);
	
	            }
	
	            break;
	
	          case Two.Commands.line:
	            ctx.lineTo(x, y);
	            break;
	
	          case Two.Commands.move:
	            d = b;
	            ctx.moveTo(x, y);
	            break;
	
	        }
	
	      });
	
	      // Loose ends
	
	      if (closed) {
	        ctx.closePath();
	      }
	
	      ctx.fill();
	      ctx.stroke();
	
	    },
	
	    updateTexture: function(gl, elem) {
	
	      this.updateCanvas(elem);
	
	      if (elem._renderer.texture) {
	        gl.deleteTexture(elem._renderer.texture);
	      }
	
	      gl.bindBuffer(gl.ARRAY_BUFFER, elem._renderer.textureCoordsBuffer);
	
	      elem._renderer.texture = gl.createTexture();
	      gl.bindTexture(gl.TEXTURE_2D, elem._renderer.texture);
	
	      // Set the parameters so we can render any size image.
	      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
	      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
	      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
	      // gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
	      // gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
	      // gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
	
	      if (this.canvas.width <= 0 || this.canvas.height <= 0) {
	        return;
	      }
	
	      // Upload the image into the texture.
	      gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, this.canvas);
	
	    },
	
	    updateBuffer: function(gl, elem, program) {
	
	      if (_.isObject(elem._renderer.buffer)) {
	        gl.deleteBuffer(elem._renderer.buffer);
	      }
	
	      elem._renderer.buffer = gl.createBuffer();
	
	      gl.bindBuffer(gl.ARRAY_BUFFER, elem._renderer.buffer);
	      gl.enableVertexAttribArray(program.position);
	
	      gl.bufferData(gl.ARRAY_BUFFER, elem._renderer.triangles, gl.STATIC_DRAW);
	
	      if (_.isObject(elem._renderer.textureCoordsBuffer)) {
	        gl.deleteBuffer(elem._renderer.textureCoordsBuffer);
	      }
	
	      elem._renderer.textureCoordsBuffer = gl.createBuffer();
	
	      gl.bindBuffer(gl.ARRAY_BUFFER, elem._renderer.textureCoordsBuffer);
	      gl.enableVertexAttribArray(program.textureCoords);
	
	      gl.bufferData(gl.ARRAY_BUFFER, this.uv, gl.STATIC_DRAW);
	
	    },
	
	    program: {
	
	      create: function(gl, shaders) {
	        var program, linked, error;
	        program = gl.createProgram();
	        _.each(shaders, function(s) {
	          gl.attachShader(program, s);
	        });
	
	        gl.linkProgram(program);
	        linked = gl.getProgramParameter(program, gl.LINK_STATUS);
	        if (!linked) {
	          error = gl.getProgramInfoLog(program);
	          gl.deleteProgram(program);
	          throw new Two.Utils.Error('unable to link program: ' + error);
	        }
	
	        return program;
	
	      }
	
	    },
	
	    shaders: {
	
	      create: function(gl, source, type) {
	        var shader, compiled, error;
	        shader = gl.createShader(gl[type]);
	        gl.shaderSource(shader, source);
	        gl.compileShader(shader);
	
	        compiled = gl.getShaderParameter(shader, gl.COMPILE_STATUS);
	        if (!compiled) {
	          error = gl.getShaderInfoLog(shader);
	          gl.deleteShader(shader);
	          throw new Two.Utils.Error('unable to compile shader ' + shader + ': ' + error);
	        }
	
	        return shader;
	
	      },
	
	      types: {
	        vertex: 'VERTEX_SHADER',
	        fragment: 'FRAGMENT_SHADER'
	      },
	
	      vertex: [
	        'attribute vec2 a_position;',
	        'attribute vec2 a_textureCoords;',
	        '',
	        'uniform mat3 u_matrix;',
	        'uniform vec2 u_resolution;',
	        '',
	        'varying vec2 v_textureCoords;',
	        '',
	        'void main() {',
	        '   vec2 projected = (u_matrix * vec3(a_position, 1.0)).xy;',
	        '   vec2 normal = projected / u_resolution;',
	        '   vec2 clipspace = (normal * 2.0) - 1.0;',
	        '',
	        '   gl_Position = vec4(clipspace * vec2(1.0, -1.0), 0.0, 1.0);',
	        '   v_textureCoords = a_textureCoords;',
	        '}'
	      ].join('\n'),
	
	      fragment: [
	        'precision mediump float;',
	        '',
	        'uniform sampler2D u_image;',
	        'varying vec2 v_textureCoords;',
	        '',
	        'void main() {',
	        '  gl_FragColor = texture2D(u_image, v_textureCoords);',
	        '}'
	      ].join('\n')
	
	    }
	
	  };
	
	  webgl.ctx = webgl.canvas.getContext('2d');
	
	  var Renderer = Two[Two.Types.webgl] = function(options) {
	
	    var params, gl, vs, fs;
	    this.domElement = options.domElement || document.createElement('canvas');
	
	    // Everything drawn on the canvas needs to come from the stage.
	    this.scene = new Two.Group();
	    this.scene.parent = this;
	
	    this._renderer = {
	      matrix: new Two.Array(identity),
	      scale: 1,
	      opacity: 1
	    };
	    this._flagMatrix = true;
	
	    // http://games.greggman.com/game/webgl-and-alpha/
	    // http://www.khronos.org/registry/webgl/specs/latest/#5.2
	    params = _.defaults(options || {}, {
	      antialias: false,
	      alpha: true,
	      premultipliedAlpha: true,
	      stencil: true,
	      preserveDrawingBuffer: true,
	      overdraw: false
	    });
	
	    this.overdraw = params.overdraw;
	
	    gl = this.ctx = this.domElement.getContext('webgl', params) ||
	      this.domElement.getContext('experimental-webgl', params);
	
	    if (!this.ctx) {
	      throw new Two.Utils.Error(
	        'unable to create a webgl context. Try using another renderer.');
	    }
	
	    // Compile Base Shaders to draw in pixel space.
	    vs = webgl.shaders.create(
	      gl, webgl.shaders.vertex, webgl.shaders.types.vertex);
	    fs = webgl.shaders.create(
	      gl, webgl.shaders.fragment, webgl.shaders.types.fragment);
	
	    this.program = webgl.program.create(gl, [vs, fs]);
	    gl.useProgram(this.program);
	
	    // Create and bind the drawing buffer
	
	    // look up where the vertex data needs to go.
	    this.program.position = gl.getAttribLocation(this.program, 'a_position');
	    this.program.matrix = gl.getUniformLocation(this.program, 'u_matrix');
	    this.program.textureCoords = gl.getAttribLocation(this.program, 'a_textureCoords');
	
	    // Copied from Three.js WebGLRenderer
	    gl.disable(gl.DEPTH_TEST);
	
	    // Setup some initial statements of the gl context
	    gl.enable(gl.BLEND);
	
	    // https://code.google.com/p/chromium/issues/detail?id=316393
	    // gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, gl.TRUE);
	
	    gl.blendEquationSeparate(gl.FUNC_ADD, gl.FUNC_ADD);
	    gl.blendFuncSeparate(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA,
	      gl.ONE, gl.ONE_MINUS_SRC_ALPHA );
	
	  };
	
	  _.extend(Renderer.prototype, Backbone.Events, {
	
	    setSize: function(width, height, ratio) {
	
	      this.width = width;
	      this.height = height;
	
	      this.ratio = _.isUndefined(ratio) ? getRatio(this.ctx) : ratio;
	
	      this.domElement.width = width * this.ratio;
	      this.domElement.height = height * this.ratio;
	
	      _.extend(this.domElement.style, {
	        width: width + 'px',
	        height: height + 'px'
	      });
	
	      width *= this.ratio;
	      height *= this.ratio;
	
	      // Set for this.stage parent scaling to account for HDPI
	      this._renderer.matrix[0] = this._renderer.matrix[4] = this._renderer.scale = this.ratio;
	
	      this._flagMatrix = true;
	
	      this.ctx.viewport(0, 0, width, height);
	
	      var resolutionLocation = this.ctx.getUniformLocation(
	        this.program, 'u_resolution');
	      this.ctx.uniform2f(resolutionLocation, width, height);
	
	      return this;
	
	    },
	
	    render: function() {
	
	      var gl = this.ctx;
	
	      if (!this.overdraw) {
	        gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
	      }
	
	      webgl.group.render.call(this.scene, gl, this.program);
	      this._flagMatrix = false;
	
	      return this;
	
	    }
	
	  });
	
	})(Two);
	
	(function(Two) {
	
	  var Shape = Two.Shape = function() {
	
	    // Private object for renderer specific variables.
	    this._renderer = {};
	
	    this.id = Two.Identifier + Two.uniqueId();
	    this.classList = [];
	
	    // Define matrix properties which all inherited
	    // objects of Shape have.
	
	    this._matrix = new Two.Matrix();
	
	    this.translation = new Two.Vector();
	    this.translation.bind(Two.Events.change, _.bind(Shape.FlagMatrix, this));
	    this.rotation = 0;
	    this.scale = 1;
	
	  };
	
	  _.extend(Shape, Backbone.Events, {
	
	    FlagMatrix: function() {
	      this._flagMatrix = true;
	    },
	
	    MakeObservable: function(object) {
	
	      Object.defineProperty(object, 'rotation', {
	        get: function() {
	          return this._rotation;
	        },
	        set: function(v) {
	          this._rotation = v;
	          this._flagMatrix = true;
	        }
	      });
	
	      Object.defineProperty(object, 'scale', {
	        get: function() {
	          return this._scale;
	        },
	        set: function(v) {
	          this._scale = v;
	          this._flagMatrix = true;
	          this._flagScale = true;
	        }
	      });
	
	    }
	
	  });
	
	  _.extend(Shape.prototype, {
	
	    // Flags
	
	    _flagMatrix: true,
	
	    // _flagMask: false,
	    // _flagClip: false,
	
	    // Underlying Properties
	
	    _rotation: 0,
	    _scale: 1,
	
	    // _mask: null,
	    // _clip: false,
	
	    addTo: function(group) {
	      group.add(this);
	      return this;
	    },
	
	    clone: function() {
	      var clone = new Shape();
	      clone.translation.copy(this.translation);
	      clone.rotation = this.rotation;
	      clone.scale = this.scale;
	      _.each(Shape.Properties, function(k) {
	        clone[k] = this[k];
	      }, this);
	      return clone._update();
	    },
	
	    /**
	     * Set the parent of this object to another object
	     * and updates parent-child relationships
	     * Calling with no arguments will simply remove the parenting
	     */
	    replaceParent: function(newParent) {
	        var id = this.id, index;
	        // Release object from previous parent.
	        if (this.parent) {
	          delete this.parent.children[id];
	          index = _.indexOf(parent.additions, id);
	          if (index >= 0) {
	            this.parent.additions.splice(index, 1);
	          }
	          this.parent.subtractions.push(id);
	          this._flagSubtractions = true;
	        }
	
	        if (newParent) {
	          // Add it to this group and update parent-child relationship.
	          newParent.children[id] = this;
	          this.parent = newParent;
	          newParent.additions.push(id);
	          newParent._flagAdditions = true;
	        } else {
	          delete this.parent;
	        }
	        return this;
	    },
	
	    /**
	     * To be called before render that calculates and collates all information
	     * to be as up-to-date as possible for the render. Called once a frame.
	     */
	    _update: function(deep) {
	
	      if (!this._matrix.manual && this._flagMatrix) {
	        this._matrix
	          .identity()
	          .translate(this.translation.x, this.translation.y)
	          .scale(this.scale)
	          .rotate(this.rotation);
	
	      }
	
	      if (deep) {
	        // Bubble up to parents mainly for `getBoundingClientRect` method.
	        if (this.parent && this.parent._update) {
	          this.parent._update();
	        }
	      }
	
	      return this;
	
	    },
	
	    flagReset: function() {
	
	      this._flagMatrix = this._flagScale = false;
	
	      return this;
	
	    }
	
	  });
	
	  Shape.MakeObservable(Shape.prototype);
	
	})(Two);
	
	(function(Two) {
	
	  /**
	   * Constants
	   */
	
	  var min = Math.min, max = Math.max, round = Math.round,
	    getComputedMatrix = Two.Utils.getComputedMatrix;
	
	  var commands = {};
	
	  _.each(Two.Commands, function(v, k) {
	    commands[k] = new RegExp(v);
	  });
	
	  var Polygon = Two.Polygon = function(vertices, closed, curved, manual) {
	
	    Two.Shape.call(this);
	
	    this._renderer.type = 'polygon';
	
	    this._closed = !!closed;
	    this._curved = !!curved;
	
	    this.beginning = 0;
	    this.ending = 1;
	
	    // Style properties
	
	    this.fill = '#fff';
	    this.stroke = '#000';
	    this.linewidth = 1.0;
	    this.opacity = 1.0;
	    this.visible = true;
	
	    this.cap = 'butt';      // Default of Adobe Illustrator
	    this.join = 'miter';    // Default of Adobe Illustrator
	    this.miter = 4;         // Default of Adobe Illustrator
	
	    this._vertices = [];
	    this.vertices = vertices;
	
	    // Determines whether or not two.js should calculate curves, lines, and
	    // commands automatically for you or to let the developer manipulate them
	    // for themselves.
	    this.automatic = !manual;
	
	  };
	
	  _.extend(Polygon, {
	
	    Properties: [
	      'fill',
	      'stroke',
	      'linewidth',
	      'opacity',
	      'visible',
	      'cap',
	      'join',
	      'miter',
	
	      'closed',
	      'curved',
	      'automatic',
	      'beginning',
	      'ending'
	    ],
	
	    FlagVertices: function() {
	      this._flagVertices = true;
	      this._flagLength = true;
	    },
	
	    MakeObservable: function(object) {
	
	      Two.Shape.MakeObservable(object);
	
	      // Only the first 8 properties are flagged like this. The subsequent
	      // properties behave differently and need to be hand written.
	      _.each(Polygon.Properties.slice(0, 8), function(property) {
	
	        var secret = '_' + property;
	        var flag = '_flag' + property.charAt(0).toUpperCase() + property.slice(1);
	
	        Object.defineProperty(object, property, {
	          get: function() {
	            return this[secret];
	          },
	          set: function(v) {
	            this[secret] = v;
	            this[flag] = true;
	          }
	        });
	
	      });
	
	      Object.defineProperty(object, 'length', {
	        get: function() {
	          if (this._flagLength) {
	            this._updateLength();
	          }
	          return this._length;
	        }
	      });
	
	      Object.defineProperty(object, 'closed', {
	        get: function() {
	          return this._closed;
	        },
	        set: function(v) {
	          this._closed = !!v;
	          this._flagVertices = true;
	        }
	      });
	
	      Object.defineProperty(object, 'curved', {
	        get: function() {
	          return this._curved;
	        },
	        set: function(v) {
	          this._curved = !!v;
	          this._flagVertices = true;
	        }
	      });
	
	      Object.defineProperty(object, 'automatic', {
	        get: function() {
	          return this._automatic;
	        },
	        set: function(v) {
	          if (v === this._automatic) {
	            return;
	          }
	          this._automatic = !!v;
	          var method = this._automatic ? 'ignore' : 'listen';
	          _.each(this.vertices, function(v) {
	            v[method]();
	          });
	        }
	      });
	
	      Object.defineProperty(object, 'beginning', {
	        get: function() {
	          return this._beginning;
	        },
	        set: function(v) {
	          this._beginning = min(max(v, 0.0), this._ending);
	          this._flagVertices = true;
	        }
	      });
	
	      Object.defineProperty(object, 'ending', {
	        get: function() {
	          return this._ending;
	        },
	        set: function(v) {
	          this._ending = min(max(v, this._beginning), 1.0);
	          this._flagVertices = true;
	        }
	      });
	
	      Object.defineProperty(object, 'vertices', {
	
	        get: function() {
	          return this._collection;
	        },
	
	        set: function(vertices) {
	
	          var updateVertices = _.bind(Polygon.FlagVertices, this);
	
	          var bindVerts = _.bind(function(items) {
	
	            // This function is called a lot
	            // when importing a large SVG
	            var i = items.length;
	            while(i--) {
	              items[i].bind(Two.Events.change, updateVertices);
	            }
	
	            updateVertices();
	
	          }, this);
	
	          var unbindVerts = _.bind(function(items) {
	
	            _.each(items, function(v) {
	              v.unbind(Two.Events.change, updateVertices);
	            }, this);
	
	            updateVertices();
	
	          }, this);
	
	          // Remove previous listeners
	          if (this._collection) {
	            this._collection.unbind();
	          }
	
	          // Create new Collection with copy of vertices
	          this._collection = new Two.Utils.Collection(vertices.slice(0));
	
	          // Listen for Collection changes and bind / unbind
	          this._collection.bind(Two.Events.insert, bindVerts);
	          this._collection.bind(Two.Events.remove, unbindVerts);
	
	          // Bind Initial Vertices
	          bindVerts(this._collection);
	
	        }
	
	      });
	
	      Object.defineProperty(object, 'clip', {
	        get: function() {
	          return this._clip;
	        },
	        set: function(v) {
	          this._clip = v;
	          this._flagClip = true;
	        }
	      });
	
	    }
	
	  });
	
	  _.extend(Polygon.prototype, Two.Shape.prototype, {
	
	    // Flags
	    // http://en.wikipedia.org/wiki/Flag
	
	    _flagVertices: true,
	    _flagLength: true,
	
	    _flagFill: true,
	    _flagStroke: true,
	    _flagLinewidth: true,
	    _flagOpacity: true,
	    _flagVisible: true,
	
	    _flagCap: true,
	    _flagJoin: true,
	    _flagMiter: true,
	
	    _flagClip: false,
	
	    // Underlying Properties
	
	    _length: 0,
	
	    _fill: '#fff',
	    _stroke: '#000',
	    _linewidth: 1.0,
	    _opacity: 1.0,
	    _visible: true,
	
	    _cap: 'round',
	    _join: 'round',
	    _miter: 4,
	
	    _closed: true,
	    _curved: false,
	    _automatic: true,
	    _beginning: 0,
	    _ending: 1.0,
	
	    _clip: false,
	
	    clone: function(parent) {
	
	      parent = parent || this.parent;
	
	      var points = _.map(this.vertices, function(v) {
	        return v.clone();
	      });
	
	      var clone = new Polygon(points, this.closed, this.curved, !this.automatic);
	
	      _.each(Two.Shape.Properties, function(k) {
	        clone[k] = this[k];
	      }, this);
	
	      clone.translation.copy(this.translation);
	      clone.rotation = this.rotation;
	      clone.scale = this.scale;
	
	      parent.add(clone);
	
	      return clone;
	
	    },
	
	    toObject: function() {
	
	      var result = {
	        vertices: _.map(this.vertices, function(v) {
	          return v.toObject();
	        })
	      };
	
	      _.each(Two.Shape.Properties, function(k) {
	        result[k] = this[k];
	      }, this);
	
	      result.translation = this.translation.toObject;
	      result.rotation = this.rotation;
	      result.scale = this.scale;
	
	      return result;
	
	    },
	
	    noFill: function() {
	      this.fill = 'transparent';
	      return this;
	    },
	
	    noStroke: function() {
	      this.stroke = 'transparent';
	      return this;
	    },
	
	    /**
	     * Orient the vertices of the shape to the upper lefthand
	     * corner of the polygon.
	     */
	    corner: function() {
	
	      var rect = this.getBoundingClientRect(true);
	
	      rect.centroid = {
	        x: rect.left + rect.width / 2,
	        y: rect.top + rect.height / 2
	      };
	
	      _.each(this.vertices, function(v) {
	        v.addSelf(rect.centroid);
	      });
	
	      return this;
	
	    },
	
	    /**
	     * Orient the vertices of the shape to the center of the
	     * polygon.
	     */
	    center: function() {
	
	      var rect = this.getBoundingClientRect(true);
	
	      rect.centroid = {
	        x: rect.left + rect.width / 2,
	        y: rect.top + rect.height / 2
	      };
	
	      _.each(this.vertices, function(v) {
	        v.subSelf(rect.centroid);
	      });
	
	      // this.translation.addSelf(rect.centroid);
	
	      return this;
	
	    },
	
	    /**
	     * Remove self from the scene / parent.
	     */
	    remove: function() {
	
	      if (!this.parent) {
	        return this;
	      }
	
	      this.parent.remove(this);
	
	      return this;
	
	    },
	
	    /**
	     * Return an object with top, left, right, bottom, width, and height
	     * parameters of the group.
	     */
	    getBoundingClientRect: function(shallow) {
	
	      // TODO: Update this to not __always__ update. Just when it needs to.
	      this._update(true);
	
	      var matrix = !!shallow ? this._matrix : getComputedMatrix(this);
	
	      var border = this.linewidth / 2, x, y;
	      var left = Infinity, right = -Infinity,
	          top = Infinity, bottom = -Infinity;
	
	
	      _.each(this._vertices, function(v) {
	        x = v.x;
	        y = v.y;
	        v = matrix.multiply(x, y , 1);
	        top = min(v.y - border, top);
	        left = min(v.x - border, left);
	        right = max(v.x + border, right);
	        bottom = max(v.y + border, bottom);
	      });
	
	      return {
	        top: top,
	        left: left,
	        right: right,
	        bottom: bottom,
	        width: right - left,
	        height: bottom - top
	      };
	
	    },
	
	    /**
	     * Given a float `t` from 0 to 1, return a point or assign a passed `obj`'s
	     * coordinates to that percentage on this Two.Polygon's curve.
	     */
	    getPointAt: function(t, obj) {
	      var x, x1, x2, x3, x4, y, y1, y2, y3, y4, left, right;
	      var target = this.length * Math.min(Math.max(t, 0), 1);
	      var length = this.vertices.length;
	      var last = length - 1;
	
	      var a = null;
	      var b = null;
	
	      for (var i = 0, l = this._lengths.length, sum = 0; i < l; i++) {
	
	        if (sum + this._lengths[i] > target) {
	          a = this.vertices[this.closed ? Two.Utils.mod(i, length) : i];
	          b = this.vertices[Math.min(Math.max(i - 1, 0), last)];
	          target -= sum;
	          t = target / this._lengths[i];
	          break;
	        }
	
	        sum += this._lengths[i];
	
	      }
	
	      if (_.isNull(a) || _.isNull(b)) {
	        return null;
	      }
	
	      right = b.controls && b.controls.right;
	      left = a.controls && a.controls.left;
	
	      x1 = b.x;
	      y1 = b.y;
	      x2 = (right || b).x;
	      y2 = (right || b).y;
	      x3 = (left || a).x;
	      y3 = (left || a).y;
	      x4 = a.x;
	      y4 = a.y;
	
	      if (right && b._relative) {
	        x2 += b.x;
	        y2 += b.y;
	      }
	
	      if (left && a._relative) {
	        x3 += a.x;
	        y3 += a.y;
	      }
	
	      x = Two.Utils.getPointOnCubicBezier(t, x1, x2, x3, x4);
	      y = Two.Utils.getPointOnCubicBezier(t, y1, y2, y3, y4);
	
	      if (_.isObject(obj)) {
	        obj.x = x;
	        obj.y = y;
	        return obj;
	      }
	
	      return new Two.Vector(x, y);
	
	    },
	
	    /**
	     * Based on closed / curved and sorting of vertices plot where all points
	     * should be and where the respective handles should be too.
	     */
	    plot: function() {
	
	      if (this.curved) {
	        Two.Utils.getCurveFromPoints(this._vertices, this.closed);
	        return this;
	      }
	
	      for (var i = 0; i < this._vertices.length; i++) {
	        this._vertices[i]._command = i === 0 ? Two.Commands.move : Two.Commands.line;
	      }
	
	      return this;
	
	    },
	
	    subdivide: function(limit) {
	      //TODO: DRYness (function below)
	      this._update();
	
	      var last = this.vertices.length - 1;
	      var b = this.vertices[last];
	      var closed = this._closed || this.vertices[last]._command === Two.Commands.close;
	      var points = [];
	      _.each(this.vertices, function(a, i) {
	
	        if (i <= 0 && !closed) {
	          b = a;
	          return;
	        }
	
	        if (a.command === Two.Commands.move) {
	          points.push(new Two.Anchor(b.x, b.y));
	          if (i > 0) {
	            points[points.length - 1].command = Two.Commands.line;
	          }
	          b = a;
	          return;
	        }
	
	        var verts = getSubdivisions(a, b, limit);
	        points = points.concat(verts);
	
	        // Assign commands to all the verts
	        _.each(verts, function(v, i) {
	          if (i <= 0 && b.command === Two.Commands.move) {
	            v.command = Two.Commands.move;
	          } else {
	            v.command = Two.Commands.line;
	          }
	        });
	
	        if (i >= last) {
	
	          // TODO: Add check if the two vectors in question are the same values.
	          if (this._closed && this._automatic) {
	
	            b = a;
	
	            verts = getSubdivisions(a, b, limit);
	            points = points.concat(verts);
	
	            // Assign commands to all the verts
	            _.each(verts, function(v, i) {
	              if (i <= 0 && b.command === Two.Commands.move) {
	                v.command = Two.Commands.move;
	              } else {
	                v.command = Two.Commands.line;
	              }
	            });
	
	          } else if (closed) {
	            points.push(new Two.Anchor(a.x, a.y));
	          }
	
	          points[points.length - 1].command = closed ? Two.Commands.close : Two.Commands.line;
	
	        }
	
	        b = a;
	
	      }, this);
	
	      this._automatic = false;
	      this._curved = false;
	      this.vertices = points;
	
	      return this;
	
	    },
	
	    _updateLength: function(limit) {
	      //TODO: DRYness (function above)
	      this._update();
	
	      var last = this.vertices.length - 1;
	      var b = this.vertices[last];
	      var closed = this._closed || this.vertices[last]._command === Two.Commands.close;
	      var sum = 0;
	
	      if (_.isUndefined(this._lengths)) {
	        this._lengths = [];
	      }
	
	      _.each(this.vertices, function(a, i) {
	
	        if ((i <= 0 && !closed) || a.command === Two.Commands.move) {
	          b = a;
	          this._lengths[i] = 0;
	          return;
	        }
	
	        this._lengths[i] = getCurveLength(a, b, limit);
	        sum += this._lengths[i];
	
	        if (i >= last && closed) {
	
	          b = a;
	
	          this._lengths[i + 1] = getCurveLength(a, b, limit);
	          sum += this._lengths[i + 1];
	
	        }
	
	        b = a;
	
	      }, this);
	
	      this._length = sum;
	
	      return this;
	
	    },
	
	    _update: function() {
	
	      if (this._flagVertices) {
	
	        var l = this.vertices.length;
	        var last = l - 1, v;
	
	        var ia = round((this._beginning) * last);
	        var ib = round((this._ending) * last);
	
	        this._vertices.length = 0;
	
	        for (var i = ia; i < ib + 1; i++) {
	          v = this.vertices[i];
	          this._vertices.push(v);
	        }
	
	        if (this._automatic) {
	          this.plot();
	        }
	
	      }
	
	      Two.Shape.prototype._update.call(this);
	
	      return this;
	
	    },
	
	    flagReset: function() {
	
	      this._flagVertices =  this._flagFill =  this._flagStroke =
	         this._flagLinewidth = this._flagOpacity = this._flagVisible =
	         this._flagCap = this._flagJoin = this._flagMiter = 
	         this._flagClip = false;
	
	      Two.Shape.prototype.flagReset.call(this);
	
	      return this;
	
	    }
	
	  });
	
	  Polygon.MakeObservable(Polygon.prototype);
	
	  /**
	   * Utility functions
	   */
	
	  function getCurveLength(a, b, limit) {
	    // TODO: DRYness
	    var x1, x2, x3, x4, y1, y2, y3, y4;
	
	    var right = b.controls && b.controls.right;
	    var left = a.controls && a.controls.left;
	
	    x1 = b.x;
	    y1 = b.y;
	    x2 = (right || b).x;
	    y2 = (right || b).y;
	    x3 = (left || a).x;
	    y3 = (left || a).y;
	    x4 = a.x;
	    y4 = a.y;
	
	    if (right && b._relative) {
	      x2 += b.x;
	      y2 += b.y;
	    }
	
	    if (left && a._relative) {
	      x3 += a.x;
	      y3 += a.y;
	    }
	
	    return Two.Utils.getCurveLength(x1, y1, x2, y2, x3, y3, x4, y4, limit);
	
	  }
	
	  function getSubdivisions(a, b, limit) {
	    // TODO: DRYness
	    var x1, x2, x3, x4, y1, y2, y3, y4;
	
	    var right = b.controls && b.controls.right;
	    var left = a.controls && a.controls.left;
	
	    x1 = b.x;
	    y1 = b.y;
	    x2 = (right || b).x;
	    y2 = (right || b).y;
	    x3 = (left || a).x;
	    y3 = (left || a).y;
	    x4 = a.x;
	    y4 = a.y;
	
	    if (right && b._relative) {
	      x2 += b.x;
	      y2 += b.y;
	    }
	
	    if (left && a._relative) {
	      x3 += a.x;
	      y3 += a.y;
	    }
	
	    return Two.Utils.subdivide(x1, y1, x2, y2, x3, y3, x4, y4, limit);
	
	  }
	
	})(Two);
	
	(function(Two) {
	
	  /**
	   * Constants
	   */
	  var min = Math.min, max = Math.max;
	
	  var Group = Two.Group = function() {
	
	    Two.Shape.call(this, true);
	
	    this._renderer.type = 'group';
	
	    this.additions = [];
	    this.subtractions = [];
	
	    this.children = {};
	
	  };
	
	  _.extend(Group, {
	
	    MakeObservable: function(object) {
	
	      var properties = Two.Polygon.Properties.slice(0);
	      var oi = _.indexOf(properties, 'opacity');
	
	      if (oi >= 0) {
	
	        properties.splice(oi, 1);
	
	        Object.defineProperty(object, 'opacity', {
	
	          get: function() {
	            return this._opacity;
	          },
	
	          set: function(v) {
	            this._opacity = v;
	            this._flagOpacity = true;
	          }
	
	        });
	
	      }
	
	      Two.Shape.MakeObservable(object);
	      Group.MakeGetterSetters(object, properties);
	
	      Object.defineProperty(object, 'mask', {
	        get: function() {
	          return this._mask;
	        },
	        set: function(v) {
	          this._mask = v;
	          this._flagMask = true;
	          if (!v.clip) {
	            v.clip = true;
	          }
	        }
	      });
	
	    },
	
	    MakeGetterSetters: function(group, properties) {
	
	      if (!_.isArray(properties)) {
	        properties = [properties];
	      }
	
	      _.each(properties, function(k) {
	        Group.MakeGetterSetter(group, k);
	      });
	
	    },
	
	    MakeGetterSetter: function(group, k) {
	
	      var secret = '_' + k;
	
	      Object.defineProperty(group, k, {
	        get: function() {
	          return this[secret];
	        },
	        set: function(v) {
	          this[secret] = v;
	          _.each(this.children, function(child) { // Trickle down styles
	            child[k] = v;
	          });
	        }
	      });
	
	    }
	
	  });
	
	  _.extend(Group.prototype, Two.Shape.prototype, {
	
	    // Flags
	    // http://en.wikipedia.org/wiki/Flag
	
	    _flagAdditions: false,
	    _flagSubtractions: false,
	    _flagOpacity: true,
	
	    _flagMask: false,
	
	    // Underlying Properties
	
	    _fill: '#fff',
	    _stroke: '#000',
	    _linewidth: 1.0,
	    _opacity: 1.0,
	    _visible: true,
	
	    _cap: 'round',
	    _join: 'round',
	    _miter: 4,
	
	    _closed: true,
	    _curved: false,
	    _automatic: true,
	    _beginning: 0,
	    _ending: 1.0,
	
	    _mask: null,
	
	    /**
	     * TODO: Group has a gotcha in that it's at the moment required to be bound to
	     * an instance of two in order to add elements correctly. This needs to
	     * be rethought and fixed.
	     */
	    clone: function(parent) {
	
	      parent = parent || this.parent;
	
	      var group = new Group();
	      parent.add(group);
	
	      var children = _.map(this.children, function(child) {
	        return child.clone(group);
	      });
	
	      group.translation.copy(this.translation);
	      group.rotation = this.rotation;
	      group.scale = this.scale;
	
	      return group;
	
	    },
	
	    toObject: function() {
	
	      var result = {
	        children: {},
	        translation: this.translation.toObject(),
	        rotation: this.rotation,
	        scale: this.scale
	      };
	
	      _.each(this.children, function(child, i) {
	        result.children[i] = child.toObject();
	      }, this);
	
	      return result;
	
	    },
	
	    /**
	     * Anchor all children to the upper left hand corner
	     * of the group.
	     */
	    corner: function() {
	
	      var rect = this.getBoundingClientRect(true),
	       corner = { x: rect.left, y: rect.top };
	
	      _.each(this.children, function(child) {
	        child.translation.subSelf(corner);
	      });
	
	      return this;
	
	    },
	
	    /**
	     * Anchors all children around the center of the group,
	     * effectively placing the shape around the unit circle.
	     */
	    center: function() {
	
	      var rect = this.getBoundingClientRect(true);
	
	      rect.centroid = {
	        x: rect.left + rect.width / 2,
	        y: rect.top + rect.height / 2
	      };
	
	      _.each(this.children, function(child) {
	        child.translation.subSelf(rect.centroid);
	      });
	
	      // this.translation.copy(rect.centroid);
	
	      return this;
	
	    },
	
	    /**
	     * Recursively search for id. Returns the first element found.
	     * Returns null if none found.
	     */
	    getById: function (id) {
	      var search = function (node, id) {
	        if (node.id === id) {
	          return node;
	        }
	        for (var child in node.children) {
	          var found = search(node.children[child], id);
	          if (found) return found;
	        }
	      };
	      return search(this, id) || null;
	    },
	
	    /**
	     * Recursively search for classes. Returns an array of matching elements.
	     * Empty array if none found.
	     */
	    getByClassName: function (cl) {
	      var found = [];
	      var search = function (node, cl) {
	        if (node.classList.indexOf(cl) != -1) {
	          found.push(node);
	        }
	        for (var child in node.children) {
	          search(node.children[child], cl);
	        }
	        return found;
	      };
	      return search(this, cl);
	    },
	
	    /**
	     * Recursively search for children of a specific type,
	     * e.g. Two.Polygon. Pass a reference to this type as the param.
	     * Returns an empty array if none found.
	     */
	    getByType: function(type) {
	      var found = [];
	      var search = function (node, type) {
	        for (var id in node.children) {
	          if (node.children[id] instanceof type) {
	            found.push(node.children[id]);
	          } else if (node.children[id] instanceof Two.Group) {
	            search(node.children[id], type);
	          }
	        }
	        return found;
	      };
	      return search(this, type);
	    },
	
	    /**
	     * Add objects to the group.
	     */
	    add: function(objects) {
	
	      var l = arguments.length,
	        children = this.children,
	        grandparent = this.parent,
	        ids = this.additions,
	        id, parent, index;
	
	      if (!_.isArray(objects)) {
	        objects = _.toArray(arguments);
	      }
	
	      // Add the objects
	
	      _.each(objects, function(object) {
	
	        if (!object) {
	          return;
	        }
	
	        id = object.id;
	        parent = object.parent;
	
	        if (_.isUndefined(children[id])) {
	          // Release object from previous parent.
	          if (parent) {
	            delete parent.children[id];
	            index = _.indexOf(parent.additions, id);
	            if (index >= 0) {
	              parent.additions.splice(index, 1);
	            }
	          }
	          // Add it to this group and update parent-child relationship.
	          children[id] = object;
	          object.parent = this;
	          ids.push(id);
	          this._flagAdditions = true;
	        }
	
	      }, this);
	
	      return this;
	
	    },
	
	    /**
	     * Remove objects from the group.
	     */
	    remove: function(objects) {
	
	      var l = arguments.length,
	        children = this.children,
	        grandparent = this.parent,
	        ids = this.subtractions,
	        id, parent, index, grandchildren;
	
	      if (l <= 0 && grandparent) {
	        grandparent.remove(this);
	        return this;
	      }
	
	      if (!_.isArray(objects)) {
	        objects = _.toArray(arguments);
	      }
	
	      _.each(objects, function(object) {
	
	        id = object.id;
	        grandchildren = object.children;
	        parent = object.parent;
	
	        if (!(id in children)) {
	          return;
	        }
	
	        delete children[id];
	        delete object.parent;
	
	        index = _.indexOf(parent.additions, id);
	        if (index >= 0) {
	          parent.additions.splice(index, 1);
	        }
	
	        ids.push(id);
	        this._flagSubtractions = true;
	
	      }, this);
	
	      return this;
	
	    },
	
	    /**
	     * Return an object with top, left, right, bottom, width, and height
	     * parameters of the group.
	     */
	    getBoundingClientRect: function() {
	      var rect;
	
	      // TODO: Update this to not __always__ update. Just when it needs to.
	      this._update(true);
	
	      // Variables need to be defined here, because of nested nature of groups.
	      var left = Infinity, right = -Infinity,
	          top = Infinity, bottom = -Infinity;
	
	      _.each(this.children, function(child) {
	
	        rect = child.getBoundingClientRect();
	
	        if (!_.isNumber(rect.top)   || !_.isNumber(rect.left)   ||
	            !_.isNumber(rect.right) || !_.isNumber(rect.bottom)) {
	          return;
	        }
	
	        top = min(rect.top, top);
	        left = min(rect.left, left);
	        right = max(rect.right, right);
	        bottom = max(rect.bottom, bottom);
	
	      }, this);
	
	      return {
	        top: top,
	        left: left,
	        right: right,
	        bottom: bottom,
	        width: right - left,
	        height: bottom - top
	      };
	
	    },
	
	    /**
	     * Trickle down of noFill
	     */
	    noFill: function() {
	      _.each(this.children, function(child) {
	        child.noFill();
	      });
	      return this;
	    },
	
	    /**
	     * Trickle down of noStroke
	     */
	    noStroke: function() {
	      _.each(this.children, function(child) {
	        child.noStroke();
	      });
	      return this;
	    },
	
	    /**
	     * Trickle down subdivide
	     */
	    subdivide: function() {
	      var args = arguments;
	      _.each(this.children, function(child) {
	        child.subdivide.apply(child, args);
	      });
	      return this;
	    },
	
	    flagReset: function() {
	
	      if (this._flagAdditions) {
	        this.additions.length = 0;
	        this._flagAdditions = false;
	      }
	
	      if (this._flagSubtractions) {
	        this.subtractions.length = 0;
	        this._flagSubtractions = false;
	      }
	
	      this._flagMask = this._flagOpacity = false;
	
	      Two.Shape.prototype.flagReset.call(this);
	
	      return this;
	
	    }
	
	  });
	
	  Group.MakeObservable(Group.prototype);
	
	})(Two);


/***/ }
/******/ ]);
//# sourceMappingURL=bundle.js.map