      *  field by using the SortField class <code>compare</code> property;
      *  This way you can use the default comparison for some fields and a custom
      *  comparison for others.</p>
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 9
+     *  @playerversion AIR 1.1
+     *  @productversion Flex 3
      */
     public function get compareFunction():Function
     {

     * If the sort does not have any sort fields nor a custom comparator
     * just use an empty SortField object and have it use its default
     * logic.
     */
    private function noFieldsCompare(a:Object, b:Object, fields:Array = null):int
    {

     *  underlying data.</p>
     *
     *  @param items Array of items to sort.
     *  
     *  @langversion 3.0
     *  @playerversion Flash 9
     *  @playerversion AIR 1.1
     *  @productversion Flex 3
     */
    public function sort(items:Array):void
    {
