Ajax is a set of technologies, supported by a web browser.
It can also obtain data from other HTML pages, XML pages or even just
text files on the server.
XMLHttpRequest object is used to read or send data on the server
asynchronously. PHP scripting language is used on the server.
To get data on the server, XMLHttpRequest provides two
open: create a connection.
send: send a request to the server.
Major web browsers, that support AJAX.
Mozilla Firefox 1.0 and above.
Netscape version 7.1 and above.
Apple Safari 1.2 and above.
Microsoft Internet Explorer 5 and above.
Opera 7.6 and above.
AJAX is the art of exchanging data with a
server, and updating parts of a web page.
AJAX Tutorial - Learning AJAX Technology in
simple and easy steps.
Add Ajax functionality to your ASP.NET
applications with jQuery or the Ajax Control Toolkit.
Creating client-side dynamic Web pages. Ajax is only a name given to a
set of tools that were previously existing.