mba精锐视角js

$('.teach_list').click(function() {
      $('.mba_business_body ul.teach_li').toggle();
      $('.teach_list').toggleClass('root');
    });

    $('.teach_list').bind({
      click: function() {
      $('.mba_business_body ul.teach_li').toggle();
      $('.teach_list').toggleClass('root');
      }
    });

    $('#teach_list1').click(function() {
      var $this = $(this);
      $('.mba_business_body ul.teach_li2').hide();
      $('.mba_business_body ul.teach_li1').show();
      $this.addClass("root");
      $('#teach_list2').removeClass('root');
    });

    $('#teach_list2').click(function() {
      var $this = $(this);
      $('.mba_business_body ul.teach_li1').hide();
      $('.mba_business_body ul.teach_li2').show();
      $this.addClass("root");
      $('#teach_list1').removeClass('root');
    });