function copy_clip(meintext)
{
if (window.clipboardData)
   {

   window.clipboardData.setData("Text", meintext);

   }
   else if (window.netscape)
   {

   netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');

   var clip = Components.classes['@mozilla.org/widget/clipboard;1']
                 .createInstance(Components.interfaces.nsIClipboard);
   if (!clip) return;

  var trans = Components.classes['@mozilla.org/widget/transferable;1']
                  .createInstance(Components.interfaces.nsITransferable);
   if (!trans) return;

  trans.addDataFlavor('text/unicode');

   var str = new Object();
   var len = new Object();

   var str = Components.classes["@mozilla.org/supports-string;1"]
                .createInstance(Components.interfaces.nsISupportsString);

   var copytext=meintext;

   str.data=copytext;

   trans.setTransferData("text/unicode",str,copytext.length*2);

   var clipid=Components.interfaces.nsIClipboard;

   if (!clip) return false;

   clip.setData(trans,null,clipid.kGlobalClipboard);

   }
   alert("Copiato nella ClipBoard:\n\n" + meintext);
   return false;
}