Make a section of page intact on postback
<p>I was curious how FB <a href="http://www.facebook.com/" rel="nofollow">http://www.facebook.com/</a> makes the chat window intact (fixed where it is ) even if you click any link on that page behind the chat. The URL changes, page's content get changed but the Chat window remains intact. Can you put some light how can I implement that feature? </p>
