Adding a CSS class to a Calendar link

[eluser]champs[/eluser]
I ran into similar limitations with the Calendar and wrote my own extension to the class. Refreshing my memory, it seems that each day is an associative array, and each key is considered a variable in the table cell. I used it to produce cell definitions like:

Code:

<td class="available" id="cal20070701">

Oh, and here's my calendar mod.

EDIT:
Holy crap, half the year's gone by already!