http://createjs.com/ https://github.com/CreateJS
The Easel Javascript library provides a full, hierarchical display list, a core interaction model, and helper classes to make working with the HTML5 Canvas element much easier. http://createjs.com/
https://github.com/CreateJS/EaselJS
A simple but powerful tweening / animation library for Javascript. Part of the CreateJS suite of libraries. http://createjs.com/