[RESOLVED] format text using function doesn't work

[Karacature]

I am trying to populate a text box with different text on each frame. I am using Enter Frame to control loading the new text, but I lose the formatting when I do that.

this.addEventListener (Event.ENTER_FRAME, popUpText);
function popUpText (event:Event):void{
	Object(this).PopUp_mc.pop_txt.htmlText=textArray[(currentFrame-1)];
}

and here is the code to apply the style to the text box:

Object(this).PopUp_mc.pop_txt.setTextFormat(myTF);

Why am I losing my formatting the moment I put it in a funtion? It works fine by itself, but then I it won't update on each frame.

Thanks!