var message="Function Disabled!";
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("alert(message);return false")