From the creator of jquery.

http://dev.jquery.com/~john/processing.js/

Susan I found that absolutely fascinating. Amazing what a little canvas element can do for you! (wonder how those things print ...)

I’m torn... I don’t care for noise and eye-watering jiggling around on web pages (I tend to hit the back button as fast as I can), but this is impressive. It would give a whole new dimension to javascript game programming, and I think I can even see an interesting future for dynamic text replacement for menu items and headers that would still be accessible if not as pretty to those without javascript enabled.

I am thinking of it for dashboard applications with charts and graphs, not exactly out of the box given the demo!