is there proceed mislay opposite eventuality listeners objects?

i wish have reusable symbol purebred opposite callbacks, dynamic an outmost source. new callback set, i wish mislay old. i also wish means pristine callback presumably during any time.

public duty registerbuttoncallback(function:function):void
{
  clearbuttoncallback();

  button.addeventlistener(mouseevent.click, function, false, 0, true);
}

public duty clearbuttoncallback():void
{
  (button.haseventlistener(mouseevent.click) == true)
  {
    // something mislay listener
  }
}

i've seen suggestions here "arguments.callee" within callback, nonetheless i don't wish have functionality tied callback - example, i competence wish means click symbol twice.

suggestions?