How to override functions

Hi,
I want to create a Menu  that opens when clicked on a button, and that closes ONLY when clicked  on that button. I suppose I need to override the mouse down handler of  the menu class, but I don't know how to do this . Can someone please  help.
I tried to create a class that extends menu and inside it I  created the menu instance like this:
    public class FileMenu extends  Menu
        private var  menuItems:Array = new Array();
        private var menu:Menu = new  Menu();
And then I tried to override the mouse down  and click handlers, but it doesn't work.
     override protected function  mouseClickHandler(event:MouseEvent):void
             trace("Mouse Click");
        override  protected function mouseDownHandler(event:MouseEvent):void
             trace("Mouse Down");
Can someone please help .

I'm guessing it's because those handler functions don't actually exist with the names you provided in the Menu class.
You may have an easier time triggering a pop-up window with a button similar to what is discussed here:
http://forums.adobe.com/message/2934500

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