      *  that is associated with a RadioButton control.
      * 
      *  @default null
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 9
+     *  @playerversion AIR 1.1
+     *  @productversion Flex 3
      */
     public function get value():Object
     {

     *  <code>ButtonLabelPlacement.TOP</code>.</p>
     *
     *  @default ButtonLabelPlacement.RIGHT
     */
    override public function get labelPlacement():String
    {

 *  @includeExample examples/RadioButtonExample.mxml
 *
 *  @see mx.controls.RadioButtonGroup
 *  
 *  @langversion 3.0
 *  @playerversion Flash 9
 *  @playerversion AIR 1.1
 *  @productversion Flex 3
 */
public class RadioButton extends Button implements IFocusManagerGroup
{
