# AS3 assign class to movieclip - AN EASY QUESTION

**URL:** <https://forum.kirupa.com/t/as3-assign-class-to-movieclip-an-easy-question/328742>\
**Category:** flash\
**Created:** [June 12, 2012, 11:32pm UTC](https://forum.kirupa.com/t/as3-assign-class-to-movieclip-an-easy-question/328742 "2012-06-12T23:32:47Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Lexlutha](https://avatars.discourse-cdn.com/v4/letter/l/96bed5/32.png) [@Lexlutha](https://forum.kirupa.com/u/Lexlutha)\
**Post date:** [June 12, 2012, 11:32pm UTC](https://forum.kirupa.com/t/as3-assign-class-to-movieclip-an-easy-question/328742/1 "2012-06-12T23:32:47Z")

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Hello Gurus!

I have an AS file with the following code:

package {  
import flash.events.MouseEvent;  
import flash.events.Event;  
import flash.display.MovieClip;

```
public class btnButton {
	
	public function btnButton(btn) {
		btn.buttonMode = true;
		btn.addEventListener(MouseEvent.ROLL_OVER,btnOver);
		btn.addEventListener(MouseEvent.ROLL_OUT,btnOut);
		btn.addEventListener(MouseEvent.CLICK,btnClick);
	}
	private function btnOver(e){
		trace("over");
	}
	private function btnOut(e){
		trace("out");
	}
	private function btnClick(e){
		trace("click");
	}
}

```

}

How can I attach this to a MovieClip within my FLA file?

Many many thanks

Lex