ActionScript 3.0 :: Listeners, Targets, Display List On A 2 Level Menu?

I'm struggling with a 2 level menu and it needs to follow this condition: The "menuItem" button should be trigged with MOUSE_OVER to open its SubMenu, cause it needs to be also associated with the CLICK event.I'm managing the objects in the display list like this:

stage
__menu
____menuItem
______bt_title (movieclip that contains textfield with title of the button)

[code]....

how should I manage the EventListeners ?I've done like that:

Code:
menu_mc.addEventListener(MouseEvent.MOUSE_OVER, mouseOverItem);

I should be able to MOUSE_OVER the menuItem to open the subMenu, and leave it open while I'm still able to MOUSE_OVER and CLICK the menuItem.bt_title and every other subMenuItems.If i do:

Code:
menuItem.mouseChildren = false;

then i don't have access anymore to its children. If i do that:

Code:
menuItem.mouseChildren = true;
menuItem.bt_title.mouseEnabled = false;
menuItem.menufill.mouseEnabled = false;
menuItem.tab.mouseEnabled = true;

then I get the "epileptic" effect created by continuously mousing OVER and OUT the menuItem. Is there something to do with the capture / bubbling phase of the event flow?Where exactly should I place the listeners?