帮忙看下代码

<html>
<head>
<title>test</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
    <link rel="stylesheet" type="text/css" href="basic.css" />
    <link rel="stylesheet" type="text/css" href="ext-3.0.0/resources/css/ext-all.css" />
    <link rel="stylesheet" type="text/css" href="ext-3.0.0/examples/view/chooser.css" />
    
        
    <script type="text/javascript" src="ext-3.0.0/adapter/ext/ext-base.js"></script>    
    <script type="text/javascript" src="ext-3.0.0/ext-all.js"></script>
    <script type="text/javascript" src="ckeditor/ckeditor.js"></script>        
    <script type="text/javascript" src="common.js"></script>    
    <script type="text/javascript" src="data.js"></script>    
    <script type="text/javascript" src="chooserlayout.js"></script>        
    <script type="text/javascript" src="chooserlib.js"></script>        
    <script type="text/javascript" src="lfeditor.js"></script>
    <script type="text/javascript" src="tabs.js"></script>
    <script type="text/javascript" src="toolbars.js"></script>
    
      
</head>
<body id="body">
<div id="test"></div></body>
</html>