function winPop(pageName) {
     if (navigator.appName=="Netscape" && window.popWin) window.popWin.close();
     popWin = window.open(pageName,'popWin','toolbar=yes,location=no,directories=no,status=yes,menubar=yes,scrollbars=yes,resizable=yes,width=700,height=550');
     popWin.location.href = pageName;
     window.popWin.focus();
}