Why Are Ajax Calls Failing?

Why Are Ajax Calls Failing?

Greetings,                 March 5th, 2013

My situation that may appear rather simplistic still perplexes me while I am new to Ajax. I have loaded all the appropriate JQuery Libraries and the initial index loads fine and the JQuery Doc Ready statement loads all the files on the menus. However, after I use the load statement to load a contact.html, all loads great, into a iframe div statement within index the contact.html that utilizes an Ajax pass to a php fails. Initially, I had two various contact.html's files one for MSIE and an other for the other browsers and the browser detect system work okay and all was well until yesterday when neither contact.html worked in any browser after being called into index.html. Again, however, the contact.html's work great when referenced into a browser alone without the load into the index.html...Any idea's they were working great and mysteriously began failing? The MSIE 9 debug fails on event listeners once each time the site is loaded....Any help would be greatly appreciated ;-)