function openStatisticsWindow(url) 
{
	width = 300;
	height = 300;
	winName = "StatisticsPopUpRhomberg";
	
	options = 'toolbar=no,menubar=no,location=no,directories=no,status=no,scrollbars=no,resizable=no,copyhistory=no';
	options += ',width=' + width + ',height=' + height;
	if (window.screen)
	{
		windowLeft = (screen.availWidth - width)/2;
		windowTop = (screen.availHeight - height)/2;
		options += ',left=' + windowLeft + ',top=' + windowTop;
	}
	newwindow = window.open(url,winName,options);
	newwindow.opener = this;
	newwindow.focus();
}