function right(e) {
 if (navigator.appName == 'Netscape' && (e.which == 3 || e.which == 2)) {
  alert("Right Click Prevention Active\nSource Not Available\n");
  return false;
 }
 else if (navigator.appName == 'Microsoft Internet Explorer' && (event.button == 2 || event.button == 3)) {
  alert("Right Click Prevention Active\nSource Not Available\n");
  return false;
 }
 return true;
}
document.onmousedown=right;
if (document.layers) window.captureEvents(Event.MOUSEDOWN); {
 window.onmousedown=right;
}