function openWindow(url) {
		 if(document.layers || document.all || document.getElementById) {
		 	var window_left = (screen.width-1024)/2;
			var window_top = (screen.height-786)/2;
			popUp = window.open(url,'OpenWindow','resizable=no, menubar=no ,scrollbars=yes ,status=no ,height=700,width=575,left=' + window_left + ',top=' + window_top + '')
		}
	}