button targeting seems so obvious, but not working

I'm thinking this should be so simple, but I can't get the scaleX to work.

PHP Code:

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fishName.infoBtn.addEventListener(MouseEvent.CLICK, fishClick);
function fishClick(e:MouseEvent):void{
    btnClick = btnClickSound.play();
    fishName.infoBtn.scaleX = .1;
} 


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PHP Code:

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// disable the children of "infoBtn" so they won't react to the click event
fishName.infoBtn.mouseChildren = false;
fishName.infoBtn.addEventListener(MouseEvent.CLICK, fishClick);

function fishClick(e:MouseEvent):void
{
    btnClick = btnClickSound.play();
    e.target.scaleX = .1;
} 


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