function onRightMouseDown(e) {
	if(document.all) {
		if(event.button & 2) {
			return false;
		}
	} else {
		if(document.layers) {
			if(e.which == 3) {
				return false;
			}
		}
		if(document.getElementById) {
			if(e.button == 2) {
				return false;
			}
		}
	}
}
function enableMenu() {
	return false;
}
function initMouseDown() {
	document.oncontextmenu = enableMenu;
	if(document.all) {
		document.onmousedown = onRightMouseDown;
	}
	if(document.layers) {
		window.onmousedown = onRightMouseDown;
		window.captureEvents(Event.MOUSEDOWN);
	}
	if(document.getElementById) {
		if(window.addEventListener) {
			window.addEventListener("mousedown", onRightMouseDown, true);
		}
	}
}