Security.allowDomain

programming flash
1

i am trying to load (locally on my hard drive) one swf into another.
so i have just a simple swf in which i say this:

var loader:Loader = new Loader();
loader.contentLoaderInfo.addEventListener(Event.COMPLETE, completeHandler, false, 0, true);
loader.load( new URLRequest("VideoDoc.swf") );
function completeHandler(e:Event):void {
   addChild(loader);
}

this works fine.
but if i say this:
addChild(loader.content);//security sandbox violation pointing to completeHandler function.

i tried putting this:
Security.allowDomain("*"); in the completeHandler funtion but nothing changes.
where should i put this?

VideoDoc.swf is just the document class:


package {
    
    import flash.display.MovieClip;
    import flash.events.Event;
    import flash.display.Stage;
    import flash.text.TextField;
    
    import XMLLoader;
    import StageSetup;
    import VideoGallery;

     public class VideoDoc extends MovieClip{
        
        private var _xml:XML;
        private var _xmlLoader:XMLLoader;
        private var _videoGallery:VideoGallery;
        private var _stageSetup:StageSetup;
    
        private var _btnArr:Array;
    
        private static var _stage:Stage;
        
        public function VideoDoc() {
            
           if (stage) {
                init();// stage accessible, call init function
            } else {
                addEventListener(Event.ADDED_TO_STAGE, init, false, 0, true);// call init when stage accessible
            }
        }
            
        private function init(event:Event = null):void {
            
            if (event) {// called via event, remove it
                removeEventListener(Event.ADDED_TO_STAGE, init);
            }
            
            _stage = stage;
            
            _stageSetup = new StageSetup(_stage);
            
            _btnArr = [ up_mc, down_mc ];
            
            load( "video gallery 2.xml" );
        
        }
         
        public function load( path:String ):void {
             
            _xmlLoader = new XMLLoader( path );
            _xmlLoader.addEventListener(Event.COMPLETE, onXMLComplete, false, 0, true);
             
        }
         
        private function onXMLComplete(e:Event):void {
            
            _xmlLoader.removeEventListener(Event.COMPLETE, onXMLComplete);
            
            _xml = new XML(_xmlLoader.getXML());
            //trace(_xml);

            _videoGallery = new VideoGallery( _xml, _btnArr, popup_mc, upBar_mc, downBar_mc, info_mc );

            var index:int = this.getChildIndex(this.getChildByName("popup_mc"));
            //trace(index);
            
            addChildAt(_videoGallery, index);
            
        }
        
        public static function getStage():Stage {
            return _stage;
        }
        
        public function destroy():void {
            
            if(_videoGallery){
                
                removeChild(_videoGallery);
                _videoGallery = null;
            
            }
        }
    }
}