哪位大牛帮忙看看，js调用不能激活啊，不用active不用active不用active,怎么解决？
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Hello World</title>
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
</head>
<body>
<ul id="myTab" class="nav nav-tabs" role="tablist">
<li role="presentation"><a href="#1" role="tab" data-toggle="tab">第一项</a></li>
<li role="presentation"><a href="#2" role="tab" data-toggle="tab">第二项</a></li>
<li role="presentation"><a href="#3" role="tab" data-toggle="tab">第三项</a></li>
<li role="presentation"><a href="#4" role="tab" data-toggle="tab">第四项</a></li>
</ul>
<div id="myTabContent" class="tab-content">
<div id="1" class="tab-pane fade in">
<p>111</p>
<p>111</p>
</div>
<div id="2" class="tab-pane fade in">
<p>222</p>
<p>222</p>
</div>
<div id="3" class="tab-pane fade in">
<p>333</p>
<p>333</p>
</div>
<div id="4" class="tab-pane fade in">
<p>444</p>
<p>444</p>
</div>
</div>
<script src="http://libs.baidu.com/jquery/1.9.0/jquery.js"></script>
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<script type="text/javascript">
/*$(function(){
$('#myTab li:eq(2) a').tab('show');
});
*/
$(document).reday(function(){
$('#myTab a[href="#2"]').tab('show');
});
</script>
</body>
</html>
