# Variable problem

**URL:** <https://forum.kirupa.com/t/variable-problem/329536>\
**Category:** Uncategorized\
**Created:** [September 11, 2012, 2:22pm UTC](https://forum.kirupa.com/t/variable-problem/329536 "2012-09-11T14:22:25Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![GLotfi](https://avatars.discourse-cdn.com/v4/letter/g/5f8ce5/32.png) [@GLotfi](https://forum.kirupa.com/u/GLotfi)\
**Post date:** [September 11, 2012, 2:22pm UTC](https://forum.kirupa.com/t/variable-problem/329536/1 "2012-09-11T14:22:25Z")

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Hello everybody!  
I’ve a little problem. I’ve declared a variable on the scene “root”, n i would [SIZE=3] **trace** [/SIZE] it [SIZE=3]inside a movie clip (coz i need the value inside the MC)[/SIZE]. but it shows me an error message.

trace (“btnState”+ btnState); error msg:=\> 1120: Access of undefined property btnState.  
trace (“btnState”+ parent.btnState);error msg:=\> 1120: Access of undefined property btnState.

trace (“btnState”+ this.parent.btnState);error msg:=\> 1120: Access of undefined property btnState.

below my code:

var btnState:Number=0;

this.mainmenu.Buttonmenu.visible = false;  
this.mainmenu.Button.addEventListener(MouseEvent.CLICK, ButtonClick);  
this.mainmenu.Buttonmenu.addEventListener(MouseEvent.ROLL\_OUT, ButtonOut);

function ButtonClick(evt:MouseEvent):void {  
if (mainmenu.btnState==0){  
mainmenu.btnState=1;  
this.mainmenu.aboutmenu.visible = true;  
}else{  
mainmenu.btnState=0;  
this.mainmenu.aboutmenu.visible = false;  
}  
}

function ButtonOut(evt:MouseEvent):void {  
mainmenu.btnState=0;  
this.mainmenu.aboutmenu.visible = false;  
}

THANK YOU!