How to get event in component class?

[vladibo]

Hello,

I want to make ActionScript 2 component. I have one movie clip (my component). Inside it I have ComboBox with instance name myMovieClip. The class associated with component is

class mypackage.MyComponent extends Object{
	
	static var symbolName:String = "parser.Deroulateur";
	static var symbolOwner:Object = parser.Deroulateur;
	
	
	private var myMovieClip:MovieClip;
	
	function MyComponent(){
	
	}
	
	function change():Void{
		trace("change");
	}
	
}

I want to work with event change of the ComboBox. If I put it on the ComboBOx instance like this:

on(change){
	trace("change");
}

it works OK but how to get it in my class? I tried with method

	function change():Void{
		trace("change");
	}

but it just doesn't work

Please help.

Thank you