function launchCompareDemo(){
    var url = '/compareCovs.php?MODE=DEMO';
    
    var compareWin = window.open(url,
				 '_blank',
				 'toolbar=no,menubar=no,location=no,directories=no,status=no,scrollbars=yes,resizable=yes,copyhistory=no,width=1100,height=700,top=0,left=0');
    compareWin.focus();
}