Changing the search date range does not preserve the type selections

[inghamn]

If you've checked/unchecked a few of the event types for a search....then change the date range using the drop down, the event types reset back to their default selections.

[inghamn]

This is because the date range presets are plain hrefs which only include the filters that were used server side. Changing form values client side is not seen at all by the static hrefs.

We will need to write some javascript to parse the dates out of the hrefs, update the start/end form fields, and submit the form.