http://iframe.in/

http://forums.asp.net/t/1127834.aspx

you can use the following javascript function to set the active tab: 

function SetActiveTab(tabControl, tabNumber)
{
  var ctrl = $find(tabControl);
  ctrl.set_activeTab(ctrl.get_tabs()[tabNumber]);
}

tabControl: ID from the TabContainer Controls
tabNumber: Number of the new Tab (starting at 0)

Or

$find('<%=TabContainer1.ClientID%>').get_activeTabIndex();

and

$find('<%=TabContainer1.ClientID%>').set_activeTabIndex(2);

http://aspnet.4guysfromrolla.com/articles/071107-1.aspx

http://gabrito.com/files/subModal/

do postback in modalpopup:

http://forums.asp.net/p/1048185/1770706.aspx#1770706

http://www.aspdotnetcodes.com/ModalPopup_Postback.aspx

Force page on postback when clicking on Select link in GridView

http://forums.asp.net/t/1145438.aspx

Hooking up popupModalextender and GridView linkbutton

http://forums.asp.net/p/1153491/1887835.aspx

Asp.net popup control:

http://www.codeproject.com/aspnet/asppopup.asp

ASP.NET Page Life-Cycle

http://www.15seconds.com/issue/020102.htm

http://msdn.microsoft.com/en-us/library/ms178472.aspx

http://msdn2.microsoft.com/en-us/library/7949d756-1a79-464e-891f-904b1cfc7991.aspx

1. Object Initialization
2. Load Viewstate Data
3. LoadPostData Processes Postback Data
4. Object Load
5. Raise PostBack Change Events (Offended object)
6. Process Client-Side PostBack Event (Offending Object)
7. Prerender the Objects
8. ViewState Saved
9. Render to HTML
10. Disposal

ASP.NET AJAX Client Life-Cycle Events

http://asp.net/ajax/documentation/live/overview/AJAXClientEvents.aspx  (Very Good Article)

A Microsoft ASP.NET AJAX page raises the same server life-cycle events as an ASP.NET 2.0 Web page and also raises client life-cycle events.

http://ryanfarley.com/blog/archive/2004/05/26/737.aspx 

http://forums.asp.net/t/1133681.aspx

How to loop through a generic list using java script

http://forums.asp.net/t/1040956.aspx

http://mattberseth.com/blog/modalpopupextender/

ModalPopupExtender Example for Editing Rows in a GridView (Master/Detail Scenario)

http://mattberseth.com/blog/2007/07/modalpopupextender_example_for.html