function isPopUp()
{
	if (!window.name.match(/^hs/))
	{
		window.location = 'http://www.adventzeit.com/adventkalender';
	}
}

function popUp(url)
{
	//window.open(url,'adventkalender', 'toolbar=yes,location=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes,width=640,height=480');
	var popup = window.open(url, 'adventkalender', 'directories=no,location=no,menubar=no,resizable=no,scrollbars=no,status=no,toolbar=no,width=501,height=445');
	return false;
}