      *  This property does not affect the layout's measured size.
      *  
      *  @default "top"
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 10
+     *  @playerversion AIR 1.5
+     *  @productversion Flex 4
      */
     public function get verticalAlign():String
     {

     * 
     *  The default value of this property is the preferred width
     *  of the typicalLayoutElement.
     */
    public function get columnWidth():Number
    {

     *  of visible columns.
     *
     *  @param value The number of visible columns.
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */
    protected function setColumnCount(value:int):void
    {
