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JavaScript Game Engine

Download

enchant.js
enchant.min.js (compressed)
Design

Compact
Standalone
Graphics Object Tree
Event Driven

If i decide to write a simple game both text and graphical (2d) what libs may i use? Assuming we are using a HTML5 compatible browser.

The main things i can think of

Rendering text on screen
Animating sprites (using images/css)
Input (capturing the arrow keys and getting relative mouse positions)
Perhaps some preloading resource or dynamically loading resources and choosing order
Sound (but i am unsure how important this will be to me at first). Perhaps with mixing and chaining sounds or looping forever until stop.
Networking (low priority) to connect a user to another or to continuously GET data without multiple request (i know this exist but i dont know how easy it is to setup or use. But this isnt important to me. Its for the question).