<!-- begin script
 function netie(net, ie) {
   if ((navigator.appVersion.substring(0,3) >= net && navigator.appName == 'Netscape' && net != -1) || (navigator.appVersion.substring(0,3) >= ie && navigator.appName.substring(0,9) == 'Microsoft' && ie != -1))
       return true;
       else return false;
       }
       //  end script -->