docs: function thumbClickEvt(e) {
              var that = $(e.currentTarget),
                  index = that.index(),
                  other;
  
              if (that.closest('.fixed-thumb-container').length > 0) {
                  other = thumbContainer.find('.thumb:eq(' + index + ')');
              } else {
                  other = fixedThumbContainer.find('.thumb:eq(' + index + ')');
              }
  
              //set status of that & other synchronous
              thumbs.removeClass('focus');
  
              that.addClass('focus');
              other.addClass('focus');
  
              arrPos(that);
  
              prodList.find('.prod')
                  .addClass('hide')
                  .eq(index)
                  .removeClass('hide');
  
              if (!isInit) {
                  if (myScroll) {
                      myScroll.scrollToElement(scrollToEl, 400);
                      myScroll.refresh();
                  }
              } else {
                  isInit = false;
              }
          }