Fixed Bar like facebook/wibiya with jquery/YUI/prototype

I was just wondering if any one knows of a good script to emulate a bar like wibiya or the facebook notification bar that used to a开发者_如何学Goppear at the bottom(just before the current facebook homepage change) . I just checked out one of the scripts but it is still under heavy development so looking for some stabler options:

http://code.google.com/p/jixedbar/

The demo for jixedbar is at:

http://ryan.rawswift.com/

Thanks.

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There is a tutorial for exactly what you want here (part 1 and part 2)

UPDATE: BOTH LINKS ARE NOW DEAD! :(