var message = "";

   function clickIE(){
    if (document.all){
     (message);
     return false;
    }
   }

   function clickNS(e){
    if (document.layers || (document.getElementById && !document.all)){
     if (e.which == 2 || e.which == 3){
      (message);
      return false;
     }
    }
   }

   if (document.layers){
    document.captureEvents(Event.MOUSEDOWN);
    document.onmousedown = clickNS;
   } else {
    document.onmouseup = clickNS;
    document.oncontextmenu = clickIE;
   }
   document.oncontextmenu = new Function("return false")