Hi Steven,
thank you for your reply, but your answer is not exactly what i am looking for. My ploblem is not that i cannot close the radwindow after a certain period of time but the fact that after I press the close button of the window it closes after a few seconds...I tried the following code on the OnClientClose event of the radwindow with no big difference.
function
UnloadPage(sender, args)
{
sender.setUrl("about:blank");
}
Thanks,
Angie