ProCert Ajax Certification is a high level certification that tests working knowledge of the new Ajax programming methods.
What is Ajax?
Ajax applications look almost as if they reside on the user's machine, rather than across the Internet on a server. The reason: pages get updated, not entirely refreshed.
Traditional web applications essentially submit forms, completed by a user, to a web server. The web server responds back by sending a new web page. Because the server must submit a new page each time, applications run more slowly and awkwardly than their native counterparts.