ajax im (“asynchronous javascript and xml instant messenger”) is a browser-based instant messaging client. It uses the XMLHTTPRequest object in JavaScript to send and receive commands to and from the server. No refreshing of the page is ever needed for this “web application” to work, as everything is updated in real-time via JavaScript.
This is really cool. I bet you never thought you could do this with just some javascript and some XMLHTTP requests. Check out the version I have running locally here:
Wandering the Interwebs 