>>May be you should try to do this AJAX way. There should be a good tutorial on this topic in ASP.NET website.
>
>I agree it would be good, from the little I know about AJAX. Have you done any AJAX? How is the learning curve?

I've done some AJAX, but mosly just adding UpdatePanels to my pages. But I did a bit of JavaScript code also to update some values on the Client.