[Vektor]

Почитал и решил под редактировать с учетом написанного.
Еще раз под редактировал.

package {
	import flash.display.MovieClip;
        import flash.display.Stage;
	import flash.events.MouseEvent;
	public class Cbutton extends MovieClip {
		private var _mcButton:mcButton=new mcButton  ;
		private var _mcButton1:mcButton1=new mcButton1  ;
		private var _Down:Boolean=false;
		private var _DownButon:Object=new Object  ;
		public function Cbutton():void {
			// constructor code
			onButtonCreate(_mcButton,100,100);
			onButtonCreate(_mcButton1,200,100);
		}
		private function onButtonCreate(But:MovieClip,x:int,y:int):void {
			addChild(But);
			But.stop();
			But.x=x;
			But.y=y;
			this.addEventListener(MouseEvent.MOUSE_OVER, onMouseEvent);
			this.addEventListener(MouseEvent.MOUSE_OUT, onMouseEvent);
			this.addEventListener(MouseEvent.MOUSE_DOWN, onMouseEvent);
			stage.addEventListener(MouseEvent.MOUSE_UP, onMouseEvent);
		}
		private function onMouseEvent(event:MouseEvent):void {
			trace(event.target);
			switch (event.type) {
				case MouseEvent.MOUSE_OVER :
					if (_Down&&_DownButon==event.target) {
						_DownButon.gotoAndStop(3);
					} else {
						event.target.gotoAndStop(2);
					}
					break;
				case MouseEvent.MOUSE_OUT :
					event.target.gotoAndStop(1);
					break;
				case MouseEvent.MOUSE_DOWN :
					_DownButon=event.target;
					event.target.gotoAndStop(3);
					_Down=true;
					break;
				case MouseEvent.MOUSE_UP :
					if (!(event.target is Stage)) {
						event.target.gotoAndStop(2);
					}
					_Down=false;
					break;
			}
		}
	}
}