      *  Setting this property to <code>null</code> deselects the currently selected RadioButton control.
      *
      *  @default null
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 9
+     *  @playerversion AIR 1.1
+     *  @productversion Flex 3
      */
     public function get selection():RadioButton
     {

     *  <code>label</code> property matches this value.</p>
     *
     *  @default null
     */
    public function get selectedValue():Object
    {

     *  The number of RadioButtons that belong to this RadioButtonGroup.
     *
     *  @default "undefined"
     *  
     *  @langversion 3.0
     *  @playerversion Flash 9
     *  @playerversion AIR 1.1
     *  @productversion Flex 3
     */
    public function get numRadioButtons():int
    {
