eventDispatcher help please!

i have lets say 20 mc on the stage that inherits a custom class. added to stage via addChild.
the class has its constructor function that ads listeners. one to mousevents and other to custom event. i need that when i click on one of these mcs, everyone of them get the custom event and perform an action defines by a function.
is that posible?
i used to do that in as2 with asbroadcaster
plz help on this situation.