Another physics engine in JavaScript

One more port of the well-known physics engine Box2D on JS - box2dweb appeared on Google Code (there is a demo on the link). The author says that a ported version of Box2dJs already exists, but it has not been updated for a long time, so you have to import a large number of JS libraries into each project.

In addition to the two mentioned, today the list of physics libraries in JavaScript looks like this:

github.com/thinkpixellab/box2d - Box2D port compiled by the compiler Closure Compiler on JS
code.google.com/p/bulletjs — JBullet Java Library Fragments Port (http://jbullet.advel.cz/)
github.com/supereggbert/JigLibJS - JigLib port on JS
github.com/hapticdata/toxiclibsjs - port Toxiclibs VerletPhysics on JS
github.com/kripken/ammo.js - Bullet port on JS