AS3: addChild from an AS file

Hello,

I have a fla file with a MovieClip named Billy (class: Billy, Base Class: flash.display.MovieClip) linked to Billy.as.

I am trying to get .as file to add an instance of the MovieClip Billy onto the stage with no luck. If anybody can help me here, Thank You! I am not getting any error messages, just a blank swf file…

this is the code in Billy.as. The fla file is blank.

package
{
import flash.display.MovieClip;
import Billy;

public class Billy extends MovieClip
{
private var _billy:Billy;

public function Billy()
{
_billy = new Billy();
addChild(_billy);
}
}
}