Waiting until a tween has finished

programming flash
1

I have this bit of actionscript that tweens a movie in position and scale. It then attaches a movie from the library.



            _root.info._alpha = 100;
  		_root.info.slideTo(20, 100);
		_root.info.window.tween(["_xscale"],[140],1);
		_root.info.hit.tween(["_xscale"],[102],1);
		_root.info.hit.tween(["_x"],[-80],0.5);
		

		_root.info.container.attachMovie(_root.info.brand,_root.info.brand,1);

Whats the best way of waiting until the tween is complete before attaching this movie. Basically I want the attached movie to appear once info._x == 20.