ActionScript 3.0 :: Sub-class Refer/communicate With Super Class?

i have recently started a project that would require writing a set of classes and a small API.i know some basics of inheritance and extending classes but i still have some questions.

1) how should sub-class refer/communicate with super class.i think that dispatching events is the way to go but i have no experience on that. i have previously done it by having a parent set up a reference to itself in a subclass e.g

ParentClass.addChild(SubClass);
SubClass.myParent = ParentClass;

//i know that there is already a "parent" keyword in flash objects if i extend one but is that a decent way to communicate with super class

e.g SubClass.myParent.removeChild(this);//sounds a bad call

//but is it better if i dispatched an event that calls the removeChild() in the parent.i have is about dispatching events in a class that is likely going to be extended.

ActionScript Code:
public class Button
{
//add event listeners[code]....

//now if i extend the Button class into another class, let say ControllerButton and want that button to dispatch different event. e.g ControllerEvent, i am forced to override and rewrite all the common stuff in the handler functions.how to avoid having to override allot of common stuff.