asynchronous HTTP connections, XHTML, and CSS, has turned the Web
into a true application platform. Before Ajax, submitting a form or
clicking a link meant that the entire HTML page needed to be sent
from the server, and then redrawn in the browser. Ajax allows for
far more selectivity, such that only one part of a page is updated,
leaving the rest untouched.
"Ajax works quite well, and has been increasingly popular among
many new Web sites. The only problem is the fact that the
on various browsers..."