Simple AJAX Implementation using XMLHTTPRequest

AJAX stands for Asynchronous Javascript And XML. It is implemented using the XMLHTTPRequest API. It allows content to be updated as and when needed without the need to reload the page again to reflect the page. Changes are immediately reflected and updated, thus saving time and bandwidth. To see an example, click on the link below!
http://www.thiya.net/ajax/

For more cool AJAX based applications, try the following links,
Google Maps - Try dragging the map around!
Google Suggest - Type a search term!
Windows Live - Try opening sublinks!