hello,

         I am using module pop up extender from  ajax control toolkit in my dotnetnuke project...but when i use toolscript manager or scriptmanager it shows error--  "critical error occured , object reference not set to an instance of object." but when  m comment toolscript manager or scriptmanager then module pop up extender does not work....  

thanks for the answer...

 i can use jquery in this case..but AJAX control toolkit have so many tools that i can use directly in my project , so i want to know that how to use AJAX control toolkit in dotnetnuke because when i use ajaxcontrol toolkit a critical error occured as i mentioned earlier in my question.