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;
		}
	}

	document.oncontextmenu = nocontextmenu; 
	document.onmousedown = norightclick;