Final Example: What if delicious used checkbox filters?

An exercise with jQuery to dynamically create a list of checkbox filters based on the tags of each list item in the content area. (The tags have to be repeated as class names for each list item). In the example below, the blue filters on the left are all dynamically created when the page loads. The original content is the right side. If javascript is off, the filters are never created.

Play with it and let me know where it breaks.