code: function(type, args, obj) {
          var val = args[0];
          if (YAHOO.widget.CalendarNavigator && (val === true || Lang.isObject(val))) {
              if (!this.oNavigator) {
                  this.oNavigator = new YAHOO.widget.CalendarNavigator(this);
                  // Cleanup DOM Refs/Events before innerHTML is removed.
                  this.beforeRenderEvent.subscribe(function () {
                      if (!this.pages) {
                          this.oNavigator.erase();
                      }
                  }, this, true);
              }
          } else {
              if (this.oNavigator) {
                  this.oNavigator.destroy();
                  this.oNavigator = null;
              }
          }
      }
docs: The default handler for the "navigator" property
  @method configNavigator