could i have more simple demos about the box2djs ，and where can i see the API about box2djs

[ZouYuLong]

sorry my english is not good
i want to study this lib,its very good,but i cant find any API or simple demo about this.
and i don't know anything about C or C++
i only use some javascript
so,hao can i study this lib`s API?
thank you