This is a simple example I threw together in about an hour of the fun possibilities waiting for us when we combine Processing's sketch mentality with the flexibility of Javascript and html.
The bulk of the code running this example is in superspace.js, but there is some minimal support code in jsfprocessing.js (a lame play on lisp-flavored-erlang), and of course the bulk of the code is being handled by Processing.js.
No Rights Reserved, by Will Larson