Asynchroneous (means you can make a request to server with HTTP and can process another data while waiting for servers' response) Javascript And XmlEx., Google mail
Not compulsory XML required, like text file too will work. But it must send and receive data from server.
Different brwoser has different support: like XMLHttpRequest or object like MSXML2.XML
HTTPAjax really is DHTML with the xmlhttprequest object thrown in
It is amazing to think how one object can change the whole playing fieldAjax isn't a technology as such but rather is a technique that combines well with other technologies and techniques. For example, xml, dhtml, css, xhtml
Drawback:As page is not refreshing so back button will not work as effectively.Speed. It all depends on the AJAX's requirement. Some (First) time you may find it slower than any other web application.
Some practical uses of AJAX:- Login attempts- Country and state drop down- Search results- Voting, Yes/No boxes, Ratings submissions.
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