<section>

 <h2>Section Title</h2>

 <ul class="tab-nav">

  <li><a href="#tab1" title="">Tab 1</a></li>

  <li><a href="#tab2" title="">Tab 2</a></li>

 </ul>

 <div class="tab-contents">

  <div id="tab1" class="tab-content"><!-- Tab 1 content here --></div>

  <div id="tab2" class="tab-content"><!-- Tab 2 content here --></div>

 </div>

</section>

var tabs = {

 init: function(){

  var $tab_contents=$('.tab-contents'), $tab_nav=$('.tab-nav');

  $tab_contents.find('.tab-content:not(:first)').hide();

  $tab_nav.find('li:first').addClass('active');

  $tab_nav.on('click', 'li a', function(e){

   e.preventDefault();

   var $this=$(this),activeTab=this.hash,parent=$this.parents('section'),$contents=$(parent,$tab_contents);
   //this.hash  获取锚链接<a href="#tab1"></a>

   $(parent,$tab_nav).find('li').removeClass('active');

   $this.parent().addClass('active');

   $contents.find('.tab-content').hide();

   $contents.find(activeTab).fadeIn(250);

  });

 }

};

$(document).ready(tabs.init());