function screenshot(url,w,h)
{
	var options = "left=10,top=10,width="+w+",height="+h+",toolbar=no,location=no,directories=no,status=no,menubar=no,resizable=no,scrollbars=no";
	if (url != "") {
		w=window.open("/screenshot.php?URL="+url+"&W="+w+"&H="+h,"SCREENSHOT",options);
		if((w)&&(w.focus)) w.focus();
	}
}