function popupWindow(url, popup_window, popup_width, popup_height) {
	popup_window = popup_window || 'popupWindow';
	popup_height = popup_height || 100;
	popup_width = popup_width || 100;

	window.open(url,popup_window,'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=no,width='+popup_width+',height='+popup_height+',screenX=150,screenY=150,top=150,left=150')
}