         keyframes.push(newKF);
     }
 
+    /**
+     *  Adds a MotionPath object to the transform effect with the
+     *  given parameters. 
+     *  If a MotionPath object 
+     *  on the same property already exists, adds the keyframes from the
+     *  new MotionPath object into the existing MotionPath object, sorted
+     *  by the time values.
+     *
+     *  <p>Setting a post-layout motion path as part of an effect modifies the target, 
+     *  but the parent container ignores the changes and does not update its layout.</p>
+     *
+     *  @param property The name of the property being animated.
+     *
+     *  @param valueFrom The initial value of the property.
+     *  
+     *  @param valueTo The final value of the property.
+     *  
+     *  @param valueBy An optional parameter that specifies the delta with
+     *  which to calculate either the from or to values, if one is omitted. 
+     */
     protected function addPostLayoutMotionPath(property:String,
         valueFrom:Number = NaN, valueTo:Number = NaN, valueBy:Number = NaN):void
     {
-    	if(isNaN(valueFrom) && isNaN(valueTo) && isNaN(valueBy))
-    	   return;
-    	   
+        if(isNaN(valueFrom) && isNaN(valueTo) && isNaN(valueBy))
+           return;
+           
         postLayoutTransformPropertiesSet = true;
-    	addMotionPath(property,valueFrom,valueTo,valueBy);
+        addMotionPath(property,valueFrom,valueTo,valueBy);
     }
     
     /**

     */
    public var projectionX:Number = 0;
    /**
     *  Documentation is not currently available.
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10

     */
    private var _postLayoutScaleX:MotionPath;
    /**
     *  The MotionPath describing the change in scale of the target 
     *  in the x direction during the effect.
     *  Setting this property as part of an effect modifies the target, 
     *  but the parent container ignores the changes and does not update its layout.
     *
     *  @langversion 3.0
     *  @playerversion Flash 10
     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */
    public function get postLayoutScaleX():MotionPath
    {
        return _postLayoutScaleX;
    }
    /**
     * @private
     */
    public function set postLayoutScaleX(value:MotionPath):void
    {
        _postLayoutScaleX = value;
