AJAX

Welcome to the AJAX Hub on Asynchronous JavaScript And XML, or AJAX, is a set of web development techniques using many web technologies on the client-side to create asynchronous web applications. It is not a programming language, but rather a group of technologies – HTML and CSS to strucutre and style information, respectively; JavaScript to modify and dynamically display new information; and the built-in XMLHttpRequest object to execute AJAX on webpages.

AJAX is not new; rather, it is just existing technologies used in new ways.