      *  @see #verticalGap
      *  @see #justifyColumns
      *  @default 6
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 10
+     *  @playerversion AIR 1.5
+     *  @productversion Flex 4
      */
     public function get horizontalGap():Number
     {

     *  element will be set to <code>rowHeight</code></p>.
     *
     *  @default <code>VerticalAlign.JUSTIFY</code>
     */
    public function get elementVerticalAlign():String
    {

     *  @param cellY - the y coordinate of the cell.
     *  @param cellWidth - the width of the cell.
     *  @param cellHeight - the height of the cell.
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */
    protected function sizeAndPositionElement(element:ILayoutElement,
                                              cellX:int,
