reg.js

// Login Function
function saveLoginDetails(event) {
    event.preventDefault();

    // Get values from the login form
    var username = document.getElementById("username").value;
    var password = document.getElementById("password").value;

    // Check if the user is registered
    fetch('users.txt')
        .then(response => response.text())
        .then(data => {
            const users = JSON.parse(data);
            const user = users.find(user => user.username === username && user.password === password);

            if (user) {
                // Save login details to localStorage
                localStorage.setItem("username", username);
                localStorage.setItem("password", password);

                // Redirect to the quiz page
                window.location.href = "quiz.html";
            } else {
                alert("Incorrect username or password. Please try again.");
            }
        });
}