code: function clckHlpr(i) {
      addEvent(i, 'click', function (e) {
        stopPropagation(e);
        preventDefault(e);
        currGroup = getAttr(i, _const_dataattr + '-group') || false;
        currThumbnail = i;
        openBox(i, false, false, false);
      }, false);
    }
docs: Adds clickhandlers to thumbnails
  @param  {Object} i