code: function () {
              var carousel = this,
                  item     = carousel._firstItem + carousel.get("numVisible");
  
              if (item > carousel.get("numItems")) {
                  item = 0;
              }
  
              if (carousel.get("selectOnScroll")) {
                  carousel._selectedItem = carousel._getSelectedItem(item);
              }
  
              carousel.scrollTo(item);
          }
docs: Scroll the Carousel by a page forward.
  
  @method scrollPageForward
  @public