<html>

  <head>

    <title>Login.html</title> 

    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

    <meta http-equiv="description" content="this is my page">

    <meta http-equiv="content-type" content="text/html; charset=UTF-8"> 

    <!--<link rel="stylesheet" type="text/css" href="./styles.css">-->

    <script type="text/javascript">

      function checkuser() {

         if($('uname' == "lala") && $('pwd') == "") {

           return true;

         }else {

            return false;

         }

      } 

      function $(id) {

        return document.getElementById(id).value;

      }

     </script>

  </head> 

  <body>

    <form action="ok.html">

      u:<input type="text" id="uname"/><br>

      p:<input type="password" id="pwd"/><br>

      <input type="submit" value="登录" onclick="return checkuser()"/>

    </form>

  </body>

</html> 

<html>

  <head>

    <title>ok.html</title> 

    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

    <meta http-equiv="description" content="this is my page">

    <meta http-equiv="content-type" content="text/html; charset=UTF-8"> 

    <!--<link rel="stylesheet" type="text/css" href="./styles.css">-->

    <script type="text/javascript">

        function tiao() {

          clearInterval(mytime);

          window.open("manage.html","_self");

        } 

        setTimeout("tiao()",); 

        function changeSec() {

           //得到myspan值

           $('myspan').innerText=$('myspan').innerText-;

        } 

         function $(id) {

        return document.getElementById(id);

      }

        var mytime = setInterval("changeSec()",);

    </script>

  </head> 

  <body>

    登录成功，<span id="myspan"></span>秒后自动跳转到管理页面

  </body>

</html>