AJAX
AJAX stands for Asynchronus Javascript and XML.
It's a web application development technique. Traditional web applications had many limitations because of restrictions of the browser capabilities. Today however browsers like IE5 and FireFox can run Javascript natively and fetch arbitrary data through XMLRPC interface (which is not supported by all browers). This allows a web application to update only certain parts of the web page wihout the need to refresh the whole page again and again when something changes.
It's a web application development technique. Traditional web applications had many limitations because of restrictions of the browser capabilities. Today however browsers like IE5 and FireFox can run Javascript natively and fetch arbitrary data through XMLRPC interface (which is not supported by all browers). This allows a web application to update only certain parts of the web page wihout the need to refresh the whole page again and again when something changes.