There are 2 posts in the Ajax category. Displaying posts 1 through 2:

Load a Variable File Based on Query String with jQuery and Ajax

Ajax | JavaScript | jQuery
This example will show you how to include files based on query string parameters using only client-side scripts. » View Post

Ajax Tutorial

Ajax | JavaScript | PHP
A simple crash course on Ajax (without jQuery) that will get you started in a matter of minutes. Includes an easy to follow example with multiple Ajax calls from one page. » View Post