Trace (function return value);

1

I’m having trouble refering to the return value of this function. I have done this before but not with a mouseEvent function. Can anyone tell me how to trace blueClick so that I can get the return Value

var theHolder:MovieClip = new the_Holder();
var theContent:MovieClip = new the_Content();

blueBtn.addEventListener (MouseEvent.CLICK, blueClick);

function blueClick (event:MouseEvent):Object {
with(theHolder){
addChild(theContent)
}
return theHolder;
}

trace(blueClick());