      *  @playerversion AIR 1.1
      *  @productversion Flex 3
      */
-    public function get formatter():Formatter
+    public function get formatter():IFormatter
     {
         return _formatter;
     }

    /**
     *  @private
     */
    private var _formatter:Formatter;

    /**
     *  An instance of a subclasses of mx.formatters.Formatter. 

    /**
     *  @private
     */
    public function set formatter(value:IFormatter):void
    {
        _formatter = value;
        
