Rewind when at swfelement in serialelement

Question

I have a serialelement with as last element a swfelement. In the swfelement there is a 'play again' button.
mediaplayer.stop() or   mediaplayer.seek(0) are not working because the swfelement doesn't support play, seek or stop through the mediaplayer.
What would be the best approach to do a play again ?
Thanks for any pointers,
Niels
[update]
I started with subclassing swfelement to SeekableSwfElement to add a SeekTrait, now we canSeek but I can't figure out how to make a seek(0) work on the 'whole' mediaplayer 
[/update]

Answer 1

Ok, so found it ;-))
By adding also a timeTrait we have canSeek and canSeekTo(0) to do a seek(0) and then a play !!!
public class SeekableSwfElement extends SWFElement {
        private var timeTrait : TimeTrait;
        public function SeekableSwfElement(resource:URLResource=null, loader:ImageLoader=null)
            super(resource);
        override protected function processReadyState():void
            super.processReadyState();
            timeTrait = new TimeTrait();
            addTrait(MediaTraitType.SEEK, new SeekTrait(timeTrait));
            addTrait(MediaTraitType.TIME, timeTrait);
        override protected function processUnloadingState():void
            super.processUnloadingState();
            removeTrait(MediaTraitType.SEEK);
            removeTrait(MediaTraitType.TIME);