[wasim_at_drushti]

pAsynchronous JavaScript and XML Using an enhancement in
JavaScript that allows Web pages to be more interactive and behave like local
applications, which are also known as "rich client" applications. AJAX allows
the Web page to retrieve small amounts of data from the server without reloading
the entire page.
/ppPrior to AJAX, any retrieval of data from the server required that the entire
Web page be refreshed in the user's computer. As a result, systems were often
designed with less interaction; for example, to have the user submit a form only
at the end, after all fields were filled in. In contrast, AJAX systems can
validate one or two items at a time "behind the scenes" without making the
session cumbersome, especially over slow connections. AJAX, also known as
"remote scripting," allows Web-based applications to be designed like LAN-based
applications./p