what is Ajax

[rosynancy]

Hi all i have found many sites using ajax script what is this script is it like php or what?what's the main use of this script.

Ajax is a group of interrelated web development techniques.

[WooServers]

Asynchronous JavaScript and XML.(AJAX )is a new technique for creating better, faster, and more interactive web applications with the help of XML, HTML, CSS and Java Script .It’s uses XHTML for content and CSS for presentation, as well as the Document Object Model and JavaScript for dynamic content display.

[nicorobin]

Ajax is a client-side script that communicates to and from a server/database without the need for a postback or a complete page refresh. The best definition I've read for Ajax is “the method of exchanging data with a server, and updating parts of a web page - without reloading the entire page.”