[Aib]

function MovePinion(){
  if (pinion._x-newX>deltaX)
    pinion._rotation -= k*deltaX;
    pinion._x -= delta;
  } else if (pinion._x-newX<-deltaX)
    pinion._rotation += k*deltaX;
    pinion._x += delta;
  } else {
    pinion._rotation = k*(newX-pinion._x);
    pinion._x = newX;
    pinion.onEnterFrame = null;
  }
}
_root.onRelease = function(){
  newX = _root._xmouse;
  pinion.onEnterFrame = MovePinion();
}