var myMenu:ContextMenu = new ContextMenu();
		myMenu.hideBuiltInItems();
		var menuItem1:ContextMenuItem = new ContextMenuItem("Hello World");
		var menuItem2:ContextMenuItem = new ContextMenuItem("Go to My Page");
		menuItem2.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT, doSomething);
		myMenu.customItems.push(menuItem1);
		this.contextMenu = myMenu;
		
		function doSomething(e:ContextMenuEvent):void 
		{
		var url:String = "http://www.kennylin.com";
		var request:URLRequest = new URLRequest(url);
		navigateToURL(request, '_blank');
			}

AS3 right-click menu

ActionScript 3