http://mochi.github.com/mochikit/doc/html/MochiKit/Signal.html#fn-connect
https://developer.mozilla.org/en/DOM/element.onchange
http://mochi.github.com/mochikit/doc/html/MochiKit/DOM.html#fn-formcontents
http://mochi.github.com/mochikit/doc/html/MochiKit/Base.html#fn-serializejson
http://mochi.github.com/mochikit/doc/html/MochiKit/Async.html#fn-doxhr
http://mochi.github.com/mochikit/doc/html/MochiKit/Async.html#fn-evaljsonrequest
-bob