     //--------------------------------------------------------------------------
 
     /**
-     *  Implementation of the <code>IMXMLObject.initialized()</code> method 
+     *  Implementation of the <code>IMXMLObject.initialized()</code> method
      *  to support deferred instantiation.
      *
      *  @param document The MXML document that created this object.
      *
-     *  @param id The identifier used by document to refer to this object. 
+     *  @param id The identifier used by document to refer to this object.
      *  If the object is a deep property on document, <code>id</code> is null.
-     * 
+     *
      *  @see mx.core.IMXMLObject
      */
     public function initialized(document:Object, id:String):void

                        IFlexDisplayObject(document) :
                        IFlexDisplayObject(Application.application);
    }
    
    /**
     *  Returns the RadioButton control at the specified index.
     *
     *  @param index The index of the RadioButton control in the 
     *  RadioButtonGroup control, where the index of the first control is 0.
     *
     *  @return The specified RadioButton control.

                dispatchEvent(new Event(Event.CHANGE));
        }
        else
        {
            var n:int = numRadioButtons;
            for (var i:int = 0; i < n; i++)
            {
