Delegate in as3

Question

This probably is trivial but I am not sure what the problem is. I am trying to call an event listener for a button. The problem is I have many buttons each with a string variable attached to them so that the click function can go to the frame name that is attached to the button. normally I would use the delegate class so that I could just call gotoAndPlay(this.frame) but as I understand it, as3 does not have the delegate class and basically does it automatically. So I call gotoAndPlay(this.frame) without using delegate. This results in a runtime error "ArgumentError: Error #2109: Frame label null not found in scene Scene 1." Does anyone know what the problem is? Here is my code:
import flash.events.MouseEvent;
button0.addEventListener(MouseEvent.CLICK,click);
button0.frame = "scene_1";
button1.addEventListener(MouseEvent.CLICK,click);
button1.frame = "scene_2";
button2.addEventListener(MouseEvent.CLICK,click);
button2.frame = "scene_3";
function click(event:MouseEvent):void{
    gotoAndPlay(this.frame);

Answer 1

In case you are interested about why Delegate (which was a workaround in AS2) is no longer needed in AS3:
Help Files: ActionScript 3.0 enables a method closure to automatically remember its original  object instance. This feature is useful for event handling. In ActionScript 2.0,  method closures would not remember what object instance they were extracted  from, leading to unexpected behavior when the method closure was invoked. The  mx.utils.Delegate class was a popular workaround, but it is no longer needed.