All about Ajax!

[eluser]Jamie Rumbelow[/eluser]
What I like to do is check for the AJAX request server side, so a user could visit the ULR that AJAX is requesting and it would work fine. As long as you check the URLs and get them from the <a> tag, if the user has js turned off it still works.

It's also a good idea not to add AJAX stuff to an element that doesn't have a click event natively. Things like divs, h1s and spans arn't clickable, and thus arn't clickable by programs like screen readers.