Problem with adding name to bitmap

I want to add some instance name to bitmap (imported via AS3), and I’ve got this code:

private function loadSlide():void {
            //load image
            var imgLoader:Loader = new Loader;
            imgLoader.load(new URLRequest(src));
            imgLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, createSlide);
        private function createSlide(e:Event):void {
            //add image to stage
            var imgLoader:Loader = LoaderInfo(;
            var img:Bitmap = Bitmap(imgLoader.content);
   = "test";

but I get an error:

 Error #2078: The name property of a Timeline-placed object cannot be modified.

Is there any method to add a name to bitmap object?