function ctl_popup(URL)
{
	width = 925;
	height = 650;
	left = ( ( screen.availWidth - width ) / 2 );
	oben = ( ( screen.availHeight - 30 - height ) / 2 );

	nw = window.open(URL,"CAMPUSTopLine","dependent=no,height=" + height + ",left=0,location=no,menubar=no,resizable=no,scrollbars=no,status=no,toolbar=no,top=0,width=" + width + ",top=" + oben + ",left=" + left + "");
	nw.focus();

	if(nw)
	{
		return false;
	}
	else
	{
		return true;
	}
}