function popUp(URL,w,h,scroll) {
	if(arguments.length < 2) { w = 420; h = 320; }
	var handle = window.open(URL,'popupWin','toolbar=no,location=no,directories=no,status=yes,scrollbars='+scroll+',resizable=yes,width='+w+',height='+h);
	handle.focus();

}