AJAX Script Fix

Our domain availability check has stopped working at [login to view URL] for some reason. ? We need this fixed and working properly. ? Normally, it shows if the domain is available, if any other TLDs are available, allows easy registration ect... I have included every file we carry on the site. ? The script is already written and was working perfectly but has stopped for some reason. Here is the site so you can download and view the code... ? I want the website to work as it use to. ? Something very small likely just needs to be adjusted. ? Could have been do to some server updates, I'm really not sure. [login to view URL] We need to get this fixed ASAP because we are losing money. ? Don't bid unless you can do it for very cheap as I am sure the issue is easily resolvable. First reasonable bid takes it. ? PLEASE make sure you can do the work or have done the work prior to bidding.