// popup.js
function popUp(url,w,h) {
	var features="location=no, menubar=no, status=yes, scrollbars=yes, resizable=yes, toolbar=no";
		if (w) {
			features+=", width="+ w;
		}
		if (h) {
			features+=", height="+ h;
		}
	window.open(url,'popup',features);
}