if(navigator.appName.charAt(0)=='N' && navigator.appVersion.charAt(0)>=5){
 document.write('<style type="text/css"><!--');
 document.write('.NN{ display:none; }');
 document.write('--><\/style>');
}else{
 if(navigator.appName.charAt(0)=='M' && navigator.appVersion.charAt(0)>=4){
  if(navigator.userAgent.indexOf('MSIE 4') >=0){
  }else{
   document.write('<style type="text/css"><!--');
   document.write('.NN{ display:none; }');
   document.write('--><\/style>');
  }
 }
}
if(document.layers){
 document.write('<style type="text/css">');
 document.write('code{font-size:80%;}');
 document.write('<\/style>');
}