I have a user control of "EmailToFriend" which opens a RadWindow to enter email.I used that control in a ListView therefore there are 10-15 instances of that control on Page. I want to open the radwindow at a position relative to that instance of EmailToFriend on which user cliked.Also I want only one instance of radwindow to open again & again instead of each time creating new instance to enhance performance.How can I pass the position of specific control as an argument to RadWindow. I used the ClientID but it only works when I created a new instance each time.................Thanks