Load external file - the infamous Error #1009

[Beebs]

By itself, the gallery that I found here (http://www.kirupa.com/forum/showthread.php?t=272301) can run successfully.

But when I load it into another movie I got this error :


TypeError: Error #1009: Cannot access a property or method of a null object reference.
at classes::Script()
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at classes::ImageViewer()
at classes::Script/xmlLoaded()
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at flash.net::URLLoader/onComplete()



Here's the Script.as



package classes {

import flash.display.Sprite;
import flash.net.URLLoader;
import flash.net.URLRequest;
import flash.events.Event;

public class Script extends Root {

private var xmlLoader:URLLoader = new URLLoader ();

private var container:Sprite = new Sprite ();

private var thumbScroller:ThumbScroller;// = Root.thumbScroller;
private var galleryChooser:GalleryChooser;// = Root.galleryChooser;
private var imageViewer:ImageViewer;// = Root.imageViewer;

public function Script () {
xmlLoader.addEventListener (Event.COMPLETE, xmlLoaded);
xmlLoader.load (new URLRequest ('images.xml'));

addChild (container);

Root.stage.addEventListener (Event.RESIZE, stageResized);
}

private function stageResized (evt:Event) : void {
container.y = int ((stage.stageHeight - container.height) * .5);
}

private function xmlLoaded (evt:Event) : void {
Root.images = new XML (evt.target.data);
Root.curGal = images.gallery [0].@name;

imageViewer = new ImageViewer ();
imageViewer.x = int ((stage.stageWidth - imageViewer.width) * .5);

thumbScroller = new ThumbScroller ();
thumbScroller.y = int (imageViewer.y + imageViewer.height + 15);
container.addChild (thumbScroller);

thumbScroller.construct (Root.images.gallery [0]);

addEventListener ('LOADING_COMPLETE', imageLoaded);

if (Root.images.gallery.length () != 1) {
galleryChooser = new GalleryChooser (thumbScroller);
galleryChooser.x = int ((stage.stageWidth - galleryChooser.width) * .5);
//galleryChooser.x = int (galleryChooser.x);
galleryChooser.y = int (thumbScroller.y + thumbScroller.height + 15);



container.addChild (galleryChooser);

Root.galleryChooser = galleryChooser;
}

container.addChild (imageViewer);

container.y = int ((stage.stageHeight - container.height) * .5);
container.cacheAsBitmap = true;

Root.imageViewer = imageViewer;
Root.thumbScroller = thumbScroller;
Root.container = container;
}

private function imageLoaded (evt:Event) : void {
evt.stopPropagation ();

if (evt.target.imageName != Root.curImage) {
imageViewer.showImage (evt.target.image, evt.target.imageName, evt.target.url);
Root.curImage = evt.target.imageName;
}
}
}
}


Can someone help me?

[Beebs]

Anybody?