О фреймах во Flash

Код AS3:

package
{
    import flash.display.Sprite;
    import flash.display.StageAlign;
    import flash.display.StageScaleMode;
    import flash.events.Event;
    import flash.net.URLLoader;
    import flash.net.URLLoaderDataFormat;
    import flash.net.URLRequest;
    import flash.system.ApplicationDomain;
    import flash.utils.ByteArray;
    import flash.utils.getDefinitionByName;
 
    import org.as3commons.bytecode.abc.AbcFile;
    import org.as3commons.bytecode.swf.AbcClassLoader;
    import org.as3commons.bytecode.swf.SWFFile;
    import org.as3commons.bytecode.swf.SWFFileIO;
    import org.as3commons.bytecode.tags.DoABCTag;
 
    [SWF(width="1024", height="768")]
 
    public class ABCTest extends Sprite
    {
        private var _urlLoader:URLLoader = new URLLoader();
 
        public function ABCTest()
        {
            stage.scaleMode = StageScaleMode.NO_SCALE;
            stage.align = StageAlign.TOP_LEFT;
 
            _urlLoader.addEventListener(Event.COMPLETE, bytes_completeHandler);
            _urlLoader.dataFormat = URLLoaderDataFormat.BINARY;
            _urlLoader.load(new URLRequest("abc_test.swf"));
        }
 
        private function bytes_completeHandler(event:Event):void
        {
            trace("bytes complete");
            var io:SWFFileIO = new SWFFileIO();
            var swfFile:SWFFile = io.read(_urlLoader.data as ByteArray);
 
            var abcTags:Array = swfFile.getTagsByType(DoABCTag);
            for each(var tag:DoABCTag in abcTags)
            {
                var abcFile:AbcFile = tag.abcFile;
                var abcLoader:AbcClassLoader = new AbcClassLoader();
                abcLoader.addEventListener(Event.COMPLETE, classLoader_CompleteHandler);
                abcLoader.loadAbcFile(abcFile, ApplicationDomain.currentDomain);
            }
        }
 
        private function classLoader_CompleteHandler(event:Event):void
        {
            trace('class loaded');
            var TestClass:Class = getDefinitionByName('Airplane') as Class;
 
            addChild(new TestClass());
        }
    }
}