getAdjacentAnchor: function (op) {
            var current = this.getAnchorIndex(), as = hs.anchors.groups[this.slideshowGroup || 'none'];
            if (as && !as[current + op] && this.slideshow && this.slideshow.repeat) {
                if (op == 1) return as[0];
                else if (op == -1) return as[as.length - 1];