Hi all, I want to show the page grayed out when user clicks a button so that user cant click it again. On backend, I am calling a webservice. When this process completes, I want to redirect to next page. I read about it on net. Basically, I need to set opacity. I have used following code. It works with few errors. When I use it on one screen, gray screen goes to full page legth. where as on other computer it is on half computer screen..FreezePaneOff { visibility: hidden;