if (window.Event) // Only Netscape will have the CAPITAL E.
    	document.captureEvents(Event.MOUSEUP); // catch the mouse up event

    function nocontextmenu(){ // this function only applies to IE4, ignored otherwise.
		event.cancelBubble = true
		event.returnValue = false;
		return false;
	}

    function norightclick(e){ // This function is used by all others browsers
		if (window.Event){	// again, IE or Netscape 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 other browserss