Quick AJAX help

If you know AJAX, I need your help. I have a running XMLHttpRequest AJAX process that runs on an ASP Classic page. I need it to pause or be aborted while the user fills out a quick form (check box and text field). Then when the page reloads the AJAX should resume. I have attached a script for your review. Obviously I am doing something wrong, so let me know what the solution is, thanks!