Looking for simple plug-in

I’m looking for a plug-in that does exactly jQuery Archive List Widget does except for categories instead. I’ve searched for hours and I haven’t got anywhere. I don’t know if this is just because I’m not searching for the right term or if it just hasn’t been made but it should be fairly simple.

I guess what I would have to do is change the database references from archive to category but I really have no idea how to do this. Any help is appreciated.

Code for jQuery Archive List Widget if interested.

Please paste code into a pastebin such as wordpress.pastebin.com, and report the link back here. Thanks.