 
 import spark.components.Button;
 import spark.core.IViewport;
-import spark.effects.SimpleMotionPath;
 import spark.effects.animation.Animation;
+import spark.effects.animation.MotionPath;
+import spark.effects.animation.SimpleMotionPath;
 import spark.effects.easing.IEaser;
 import spark.effects.easing.Linear;
 import spark.effects.easing.Sine;


package spark.components.supportClasses
{

import flash.events.Event;
import flash.events.MouseEvent;

        _animator.animationTarget = animTarget;
        return _animator;
    }
    
    /**
     * @private
     * These variables track whether we are currently involved in a stepping
