text: window.MS = window.MS || {}
  window.MS.scroll = {
      board: function (container, option) {
          var opt = $.extend({
              itemSelecor: '.item',
              itemHeight: null,
              interval: 3000,
          }, option);
          var $container = $(container);
          var isOver = false;
          if (null === opt.itemHeight) {
              opt.itemHeight = $container.find(opt.itemSelecor).eq(0).height();
          }
          var $itemContainer = $container.find(opt.itemSelecor).parent();
          $itemContainer.append($container.find(opt.itemSelecor).eq(0).clone());
          $itemContainer
              .on('mouseover', function () {
                  isOver = true;
              })
              .on('mouseout', function () {
                  isOver = false;
              });
          var $items = $container.find(opt.itemSelecor);
          var i = 0;
          setInterval(function () {
              if (isOver) {
                  return;
              }
              i++;
              if (i >= $items.length) {
                  $itemContainer.css({marginTop: '0'});
                  i = 1;
              }
              $itemContainer.animate({marginTop: '-' + (opt.itemHeight * i) + 'px'});
          }, opt.interval);
      }
  };
  