jQuery简单tab按钮切换

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
        <style>
            .tabulous_active{
                border: 1px solid blue;
            }
        </style>
        <script src="js/jquery.js"></script>
    </head>
    <body>
    <div id="meeting_tabs">
        <ul>
              <li class="tabulous_active"><a href="#" title="">全部</a></li>
              <li><a href="#" title="">未开始</a></li>
              <li><a href="#" title="">已结束</a></li>
               <li><a href="#" title="">进行中</a></li>
        </ul>
           <div id="tabs_container">
            <div  class="pane">1</div>
            <div  class="pane">2</div>
            <div  class="pane">3</div>
            <div  class="pane">4</div>
          </div>
    </div>
    
    <script>
        $('#meeting_tabs>ul li').click(function(){
            $(this).addClass('tabulous_active').siblings().removeClass('tabulous_active');
            var num = $(this).index();
            if(num == 0){
                $('#tabs_container .pane').show();
            }else{
                $('#tabs_container .pane').eq(num).show().siblings().hide();
            }
         });
    </script>
    </body>
</html>