Error with numbnail type class

1

Hey all… I’m making a thumbnail type class here and it’s working just fine, but the problem comes when I want to rollover/ rolloff my thumbs. SOMETIMES I get this error when I roll off the thumb:

TypeError: Error #1006: setTextFormat is not a function.
at com.mysite.testing::CreateThumbs/::boxOnMouseOut()

Any thoughts?


package com.mysite.testing {
	
	import flash.display.Sprite;
	import flash.events.*;
	import flash.display.MovieClip;
	import flash.text.TextFormatAlign;
	import flash.text.TextField;
	import flash.text.TextFormat;
	import fl.containers.UILoader;
	
	public class CreateThumbs extends Sprite{
		
		private var _urlString:String; //url for product
		private var _imgString:String; //url for image
		private var _titleString:String; //title of product
		private var _catString:String; // category id
		private var graceArray:Array = new Array();
		private var thumbHider:MovieClip = new MovieClip();
		
        public function CreateThumbs(newPos:Number, thumbXML:XML) {
						
			var dataLoader:MovieClip = new MovieClip();
			dataLoader.graphics.lineStyle(1, 0xffffff, 1, true);
			dataLoader.graphics.beginFill(0x5d5d5d, 1);
			dataLoader.graphics.drawRect(-1, -1, 112, 152);
			dataLoader.graphics.endFill();
			dataLoader.x = newPos + 30;
			dataLoader.y = 45;
			dataLoader.mouseEnabled = true;
			dataLoader.height = 160;
			dataLoader.width = 120;
			dataLoader.buttonMode = true;			
			dataLoader.addEventListener(MouseEvent.MOUSE_OVER, boxOnMouseOver);
			dataLoader.addEventListener(MouseEvent.MOUSE_OUT, boxOnMouseOut);
			dataLoader.addEventListener(MouseEvent.MOUSE_DOWN, boxOnPress);
					
			var photoLoader:UILoader = new UILoader();
			photoLoader.mouseEnabled = true;
			photoLoader.width = 110;
			photoLoader.height = 150;
			photoLoader.y = 0;
			photoLoader.x = 0;
			photoLoader.source = thumbXML.thumbnailUrl.text(); //substitute with url to 150x110 image
			
			thumbHider.graphics.lineStyle(0, 0xa9a9a9, 0, true);
			thumbHider.graphics.beginFill(0x000000, 1);
			thumbHider.alpha = .6;
			thumbHider.graphics.drawRect(-1, -1, 110, 150);
			thumbHider.graphics.endFill();
			thumbHider.x = 0;
			thumbHider.y = 0;
			thumbHider.mouseEnabled = true;
			thumbHider.height = 153;
			thumbHider.width = 112;
			thumbHider.buttonMode = true;
			
			var textHolder:MovieClip = new MovieClip();
			textHolder.graphics.drawRect(1, 1, 111.5, 25);
			textHolder.x = -2;
			textHolder.y = 151;
		
			var boxName:TextField = new TextField();
			boxName.text = thumbXML.title.text();
			boxName.y = 5;
			boxName.width = 110;
			boxName.height = 20;			
			boxName.mouseEnabled = false;
			boxName.wordWrap = true;
			boxName.textColor = 0xffffff;
			boxName.antiAliasType = "advanced";
			
			var boxNameFormat:TextFormat = new TextFormat("Trebuchet MS", 11, 0xffffff, false, null, null, null, null, TextFormatAlign.CENTER);
			boxName.setTextFormat(boxNameFormat);
			textHolder.addChild(boxName);
			dataLoader.addChild(textHolder);
			dataLoader.addChild(photoLoader);
			dataLoader.addChild(thumbHider);
			addChild(dataLoader); 
        }
		
		private function boxOnMouseOver(evt:MouseEvent){
			thumbHider.alpha = 0;
			
			evt.target.parent.graphics.clear();
			evt.target.parent.graphics.lineStyle(2, 0xffffff, 1, true);
			evt.target.parent.graphics.drawRect(-1, -1, 112, 152);
			var bNFormat:TextFormat = new TextFormat("Trebuchet MS", 11, 0xffffff, true, null, null, null, null, TextFormatAlign.CENTER);
			evt.target.parent.getChildAt(0).getChildAt(0).setTextFormat(bNFormat);

			}
		
		private function boxOnMouseOut(evt:MouseEvent){
			thumbHider.alpha = .4;
			evt.target.parent.graphics.clear();
			evt.target.parent.graphics.lineStyle(1, 0xffffff, 1, true);
			evt.target.parent.graphics.drawRect(-1, -1, 112, 152);
			var bNFormat:TextFormat = new TextFormat("Trebuchet MS", 11, 0xffffff, false, null, null, null, null, TextFormatAlign.CENTER);
			evt.target.parent.getChildAt(0).getChildAt(0).setTextFormat(bNFormat);
			}
		
		private function boxOnPress(evt:MouseEvent){
                                  //nothing yet
                 }
		
		private function randomNumber(low:Number=NaN, high:Number=NaN):Number{
			var low:Number = low;
			var high:Number = high;
			
			if(isNaN(low))
			{
				throw new Error("low must be defined");
			}
			if(isNaN(high))
			{
				throw new Error("high must be defined");
			}
			return Math.round(Math.random() * (high - low)) + low;
		}
    }
}