I just wanted to play with liquidfun and javascript as quickly as possible.
To get it going: just open up the index.html and you'll get a simple bouncing blob that will jump with any keypress.
None of it is minified, which makes debugging a breeze. It's just so you can get up and running as quickly as possible. I'll leave the minifying up to the reader.
I looked everywhere for a simple box2d port that had readable javascript so debugging was easy, but couldn't find anything. Finally, I found flyover's port of box2d, which also conveniently included liquidfun.
The only downside of that was that it used google's closure compiler, which I didn't want to mess with. I therefore manually went through each file, and removed all of the closure compiler references, replacing them with non-closure equivalent javascript.
I've also included simple drawing functions onto a canvas so you can see what is happening.
Note:
This also has support for b2ParticleSystem.GetBodyContacts, which for some reason some ports of liquidfun don't support.