http://msmvps.com/blogs/luisabreu/archive/2007/10/18/asp-net-ajax-another-trick-that-might-help-in-some-specific-scenarios.aspxToday I've found another interesting post at the AJAX forums (yep, this is the only forum you can say I read frequently nowadays). The scenarios looks like this: a web app has a main page which is uses as the main entry page )lets call it page a)enCommunityServer 2008.5 SP2 (Build: 40407.4157)