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")