Raphaël — JavaScript Library

[Looks great, supports every major browser including iPhone’s WebKit][link], and:

>Raphaël uses the SVG W3C Recommendation and VML as a base for creating graphics. This means every graphical object you create is also a DOM object, so you can attach JavaScript event handlers or modify them later. Raphaël’s goal is to provide an adapter that will make drawing vector art compatible cross-browser and easy.

[link]: http://raphaeljs.com/ “Raphaël—JavaScript Library”