code: function(type, args, obj) {
          var selected = args[0],
              cfgSelected = DEF_CFG.SELECTED.key;
          
          if (selected) {
              if (Lang.isString(selected)) {
                  this.cfg.setProperty(cfgSelected, this._parseDates(selected), true);
              } 
          }
          if (! this._selectedDates) {
              this._selectedDates = this.cfg.getProperty(cfgSelected);
          }
      }
docs: The default handler for the "selected" property
  @method configSelected