      *  and during updateDisplayList() is the unscaledWidth.
      *  @param height - the height during measure() is the layout target explicitHeight or NaN
      *  and during updateDisplayList() is the unscaledHeight.
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 10
+     *  @playerversion AIR 1.5
+     *  @productversion Flex 4
      */
     protected function updateActualValues(width:Number, height:Number):void
     {

     *  @param cellY - the y coordinate of the cell.
     *  @param cellWidth - the width of the cell.
     *  @param cellHeight - the height of the cell.
     */
    protected function sizeAndPositionElement(element:ILayoutElement,
                                              cellX:int,

     *  Supported values are "rows", "columns".
     *
     *  @default "rows"
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */
    public function get orientation():String
    {
