AJAX XMLHttpRequest Helper Class

Just put up a finished XMLHttpRequest JavaScript class to simplify working with the things. It's based upon stuff glommed from a lot of sources. The main thing is that I wanted to create an OO wrapper around the code and clean up how it can be called.

USAGE:

var http = new AjaxRequest()
http.setTarget("/ping.php")
http.setForm(new URLBuilder("word", "ping"))
var synchronousGet = http.get()
var synchronousPost = http.post()
// Asynchronous
http.get(closureHere) 
http.post(closureHere)

See also: ViewCVS, tar and test page.