Apple-link drop-down menu

I'm looking to create a menu like seen here 开发者_如何学编程on the sidebar (http://help.apple.com/mobileme/) that will contain articles for a help application I'm putting together for a webapp. I'm wanting to use mostly css and jquery for the sliding like effect etc. Is there anything out-there that is similar? Thanks.

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The sidebar on that site is using something known as a "tree view".

The Google favorite for "jquery treeview" is this:

http://bassistance.de/jquery-plugins/jquery-plugin-treeview/

"Sample 3" on the demos page looks like exactly what you want.