[jQuery] Ajax numpty, stumbling around

[jQuery] Ajax numpty, stumbling around

Right, First of id like to give a big thanks to all you on the jQuery
list that have helped me while i get my head wrapped around the basics
of jQuery, the help ive had of this list has been great and really
helped me.
For months now i have put of doing anything AJAX related as i just didnt
get how it worked, but with my new found love of jQuery i belive i
should be able to finaly push myself into AJAX without hurting myself
too much.
Im currently trying to do a simpe re-write of my login page for a custom
CMS im writing in PHP, what i want to know is how do i pass the
submitted form values to the jQuery AJAX call and if there anything else
i need to do to my PHP functions to make them work with the AJAX or can
i just keep them looking for $_POST/GET values?
My current test login page source can be found below
http://pastecode.net/?action=viewpost&tag=997
Any help you can provide will be great, as ive not been able to find
online tuts for AJAX parts of jQuery - least none that help me with this.
Many thanks
Mark 'Phunky' Harwood
_______________________________________________
jQuery mailing list
discuss@jquery.com
http://jquery.com/discuss/