looking for a free web calendar program

Like the title says...

Ive looked around but nothing seems to be exactly what I want...

What Im looking for is a little calendar that can go in the navigation bar of a website, and then produce popups with event info when a date is clicked.

Any suggestions would be much appreciated.

Why not write it in Flash?
Or...http://sourceforge.net/projects/webcalendar/

-ben

too lazy to write it myself...

Thanks for the link, looks like it will do the trick.