        <!--
        var message="Tasto destro disabilitato!";
        
        function clickIE4()
          {
            if (event.button==2)
              {
                alert(message);
                return false;
              }
          }
        
        function clickNS4(e)
          {
            if (document.layers||document.getElementById&&!document.all)
              {
                if (e.which==2||e.which==3)
                  {
                    alert(message);
                    return false;
                  }
              }
          }
        
        if (document.layers)
          {
            document.captureEvents(Event.MOUSEDOWN);
            document.onmousedown=clickNS4;
          }
        else if (document.all&&!document.getElementById)
        	{
            document.onmousedown=clickIE4;
          }
        
        document.oncontextmenu=new Function("return false")
        //document.oncontextmenu=new Function("alert(message);return false")
        // -->