Aptana presents Jaxer
 

...a kick-ass client/server JavaScript framework. When you think the world is perfect, it is not :D

Screencasts: Seeing is Believing | Aptana

I saw that it got added when i updated last night but havent figured out how to work it yet.

Lol, it's pure Javascript. If you don't know that, you will have a problem. Check out the screencasts, they explain you what you need to know (in the case you know js).