if (window.Event) 
	  document.captureEvents(Event.MOUSEUP); 

	function nocontextmenu() 
	{ 
	  event.cancelBubble = true;
	  event.returnValue = false; 
	  return false; 
	} 

	function norightclick(e) 
	{ 
	  if (window.Event) 
	  { 
	    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;
	    } 
	} 

	if (document.layers)
	  document.captureEvents(Event.MOUSEDOWN); 
 
	document.oncontextmenu = nocontextmenu; 
	document.onmousedown = norightclick; 
	document.onmouseup = norightclick;