# Root access to method in document class from loaded swf

**URL:** <https://forum.kirupa.com/t/root-access-to-method-in-document-class-from-loaded-swf/303736>\
**Category:** Uncategorized\
**Created:** [January 26, 2010, 9:33am UTC](https://forum.kirupa.com/t/root-access-to-method-in-document-class-from-loaded-swf/303736 "2010-01-26T09:33:27Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![alez](https://avatars.discourse-cdn.com/v4/letter/a/bbce88/32.png) [@alez](https://forum.kirupa.com/u/alez)\
**Post date:** [January 26, 2010, 9:33am UTC](https://forum.kirupa.com/t/root-access-to-method-in-document-class-from-loaded-swf/303736/1 "2010-01-26T09:33:27Z")

</div>

Hello, Im having whta I think is a quite common problem. I recently started migrating form AS2 to AS3 and Im buidling a home made template for all AS3 projects…

I have just loaded portfolio.swf on top of main.sfw. The buttons on portfolio.swf share the same class as the buttons on main.swf

This is the button class:

```auto

package com{
    import flash.display.*;
    import flash.events.*;

    
     public class Boton extends MovieClip{
         
        public function Boton(){                
            addEventListener(Event.ADDED_TO_STAGE,init);
        }
        
        private function init(e:Event){
            removeEventListener(Event.ADDED_TO_STAGE, init);
            
            addEventListener(MouseEvent.CLICK,this.onClick);
            addEventListener(MouseEvent.ROLL_OVER,this.onOver);
            addEventListener(MouseEvent.ROLL_OUT,this.onOut);
            
            activaBoton();
        }
        
        public function activaBoton():void{
            enabled=true;
        }
         
        public function desactivaBoton():void{    
            enabled=false;
        }
                
        
        public function onClick(e:Event):void{
            trace("BOTON PULSADO : "+ name);
            //Main.singleton.cambiarSeccion(name); - opcion SINGLETON
            trace(TopLevel.stage);
            TopLevel.root.cambiarSeccion(name);
        }
        
        public function onOver(e:Event):void{
            this.gotoAndPlay("rollOver");
        }
        
        public function onOut(e:Event):void{
            this.gotoAndPlay("rollOut");
        }
        
    }
}

```

As you can see, when the button is clicked it calls \*\*TopLevel.root.cambiarSeccion(name) , \*\*which is a function in Main.as that handles the change of section …

It works perfectly fine in main.swf, but when I try to compile portfolio.swf (loads on top of main.swf) It throws an error **1061: Llamada a un método cambiarSeccion posiblemente no definido mediante una referencia con tipo estático flash.display:DisplayObject.** - 1061: Call to method cambiarSeccion not defined usgin a static reference flash.display:DisplayObject

¿Any ideas on how could I fix this? :h:

Any help will be really really be appreciated, I have already spent many many hours trying to fix this thing …