      */
     protected function startHandler(event:AnimationEvent):void
     {
+        if (autoRemoveTarget)
+            addDisappearingTarget();
         dispatchEvent(event);
     }
     

        finishEffect();
        if (affectsConstraints)
            reenableConstraints();
    }
    
    private var constraintsHolder:Object;
    
    private function reenableConstraint(name:String):void

     * when the animation is complete.
     */ 
    protected var affectsConstraints:Boolean;

    /**
     * This flag indicates whether a subclass would like their target to 
     * be automatically kept around during a transition and removed when it
     * finishes. This capability applies specifically to effects like
     * Fade which act on targets that go away at the end of the
     * transition and removes the need to supply a RemoveAction or similar
     * effect to manually keep the item around and remove it when the
     * transition completes. In order to use this capability, subclasses
     * should set this variable to true and also expose the "parent"
     * and "elementHost" properties in their affectedProperties array so 
     * that the effect instance has enough information about the target
     * and container to do the job.
     */
    protected var autoRemoveTarget:Boolean = false;
        
    
    private var _easer:IEaser;    
    public function set easer(value:IEaser):void
