基于AJAX的实时聊天工具

what is it?

ajax im ("asynchronous javascript and xml instant messenger") is a browser-based instant messaging client. It uses AJAX to create a near real-time IM environment that can be used in conjunction with community, intranet, and social websites. No refreshing of the page is ever needed for this "web application" to work, as everything is updated in real-time via JavaScript.

官方网站：http://www.ajaxim.com

有兴趣的朋友可以把它下载下来研究一下 呵呵