Implement port forwarding for testing out Ray's grapher in Processing.js
Get a Hello World working in JQuery? Ask Paul for help if necessary. Drag and drop and graphing…and JSON requests?
Should be faster to work in straight javascript than Processing as you don't have to redraw. Everything including mouse should be “interrupted” and handled.
You can't access data not stored on the same domain of the page you're viewing. A trick is to ssh port forward the website to localhost at a specific port. (so your requests are http://localhost:1234 instead of http://bodytrack.org:80)