function popup(url)
{
	if ( ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion)<4)) )
	 {
window.open(url,'PopUp','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,width=600,height=500')
	 }
    else
    {
window.open(url,'PopUp','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,width=600,height=500')
    }
}