>Yes there is. It takes a little javascript and an AJAX-style partial postback to get the content. I haven't coded it myself, but you can see it working at msn. You could also use a web service and the DHTML Webservice Behavior to return the content after the response: http://msdn.microsoft.com/library/default.asp?url=/workshop/author/webservice/overview.asp.
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>Put an empty DIV on the page then stuff it with the content by hooking the onLoad event in BODY.

Thanks, I will look into that.