function go(url)
{
  if (navigator.appName == "Microsoft Internet Explorer")
  {
    if ( navigator.appVersion.indexOf( "Macintosh" ) != -1 ) // IE Mac
    {window.open(url,'','status=yes,location=no,menubar=yes,toolbar=yes,width=490,height=460,top=20,left=120,resizable=yes,scrollbars=no');
    }else // IE Win
    {window.open(url,'','status=yes,location=no,menubar=yes,toolbar=yes,width=490,height=420,top=20,left=120,resizable=yes,scrollbars=no');
    }}if (navigator.appName != "Microsoft Internet Explorer")
  {if ( navigator.appVersion.indexOf( "Macintosh" ) != -1 ) // Netscape Mac
    {window.open(url,'','status=yes,location=no,menubar=yes,toolbar=yes,width=490,height=460,top=20,left=120,resizable=yes,scrollbars=no');
    }else // Netscape WIn
    {window.open(url,'','status=yes,location=no,menubar=yes,toolbar=yes,width=490,height=420,top=20,left=120,resizable=yes,scrollbars=no');
    }
  }
}