.flash filename="simpleb.swf" bbox=420x440 version=9 fps=12 background=#666666
 .edittext log width=400 height=80  color=black multiline border  
 .put log x=0 y=0
 .action:
    package {
	import flash.display.*;

	class Box extends Shape {
	    private var bgcol:uint;
 	    private var size:uint;	
	    public function Box(bgColor:uint, size:uint) {
		this.size=size;
		this.bgcol=bgColor;
	    	graphics.beginFill(bgColor);
	    	graphics.drawRect(20,20,size,size);
	    	graphics.endFill();
	    }
	}
	class Custom extends SimpleButton {
	    public function Custom() {
		var size:uint   = 40;
	    	downState	= new Box(0x0000FF , size);
	    	overState	= new Box(0x00FF000, size);
		upState		= new Box(0xFF0000 , size);
	    	hitTestState	= new Box(0 ,size*2);// expand clic zone 
	    	hitTestState.x	-=(size/2);// centre
	    	hitTestState.y	-=(size/2);
	    	useHandCursor	= true;
	    }
	}
	public dynamic class Main extends MovieClip  {
	    private function trace (s) {
		this.log.text+=s+"\n";
	    }
	    public function Main() {
		trace('simple custom button (3 classes)');
		var button:Custom = new Custom();
	    	addChild(button);
	    }
	}
    }
 .end # action
.end # .flash