Hmmm I'm seeing the homepage issue, it looks like they've added content to the page that forces the content to scroll down.

While we did build the major functionality of the site, the content is maintained by the organization, they actually have their own developers now maintaining and developing code.

slage, that feature is built in.  just put a description in the event, and it will show up when people mouse over.

The default Events calendar uses a standard JavaScript "tooltip" popup. The event information and descriptions for every event is hidden in the code. If you have a lots of events or large descriptions the page size can get huge.

Your Events calendar appears to be the same module but uses Ajax for the "tooltip" task. The page size is smaller and descriptions don't get sent to the client unless they are requested. In my opinion this is a great improvement.