docs: function () {
              var self = this;
                  i = self._getCurrent(),
                  c = 'sausage-current';
              if (i === self.current || self.blocked)
              {
                  return;
              }
              self.current = i;
              self.$sausages.children().eq(i)
                  .addClass(c)
              .siblings()
                  .removeClass(c)
                  ;
              // Trigger the `update` event.
              self._trigger('update');
              return;
          }