if (window.Event) // Only Netscape will have the CAPITAL E.

  document.captureEvents(Event.MOUSEUP); // catch the mouse up event

 function nocontextmenu()  // only applies to IE4, ignored otherwise.

{

 event.cancelBubble = true

 event.returnValue = false;

  return false;

}

 function norightclick(e) // This function is used by all others

{

 if (window.Event) // again, IE or NAV?

 {

  if (e.which == 2 || e.which == 3)

   return false;

 }

 else

  if (event.button == 2 || event.button == 3)

  {

   event.cancelBubble = true

   event.returnValue = false;

   return false;

  }

 }

 document.oncontextmenu = nocontextmenu;  // for IE5+

document.onmousedown = norightclick;  // for all others