function popupWindow(url,width,height,scrollbars,winName) {
	if(arguments.length < 4) { scrollbars = 'no'; }
	if(arguments.length < 5) { winName = 'popupWin'; }
	var handle = window.open(url,winName,'toolbar=no,location=no,directories=no,status=yes,scrollbars='+scrollbars+',resizable=yes,width='+width+',height='+height);
	handle.focus();
}