php and javascript, prototype problem

Ok, so heres my problem:

http://www.revonal.com/register.php

I just got done working on a brand new register script, but it seems to only work in ie, not in firefox, safari, opera, etc... works flawless in ie. I am using prototype version 1.5.1.1, with ajax.

EDIT: it works fine in opera, firefox and safari are the only ones that dont work; that i know of.

I dont know what I did wrong...

Sincerely,
JOrdan martin
Seraskier

nevermind, i needed to use id instead of name..whoopsies.