login.html

<!DOCTYPE html>

<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>用户登录</title>
  <style type="text/css">
    html{font-size:12px;}
	fieldset{width:300px; margin: 0 auto;}
	legend{font-weight:bold; font-size:14px;}
	.label{float:left; width:70px; margin-left:10px;}
	.left{margin-left:80px;}
	.input{width:150px;}
	span{color: #666666;}
  </style>
  <script src="login.js" charset="utf-8"></script>
<script src="ajax.js" charset="utf-8"></script>

</head>
<body>
<div>
<fieldset>
<legend>用户登录</legend>
<form name="LoginForm" method="post" action="login.php" onSubmit="return InputCheck(this)">
<p>
<label for="username" class="label">用户名:</label>
<input id="username" name="username" type="text" class="input" />

<p/>
<p>
<label for="password" class="label">密 码:</label>
<input id="password" name="password" type="password" class="input" />

<p/>
<p>
<input type="submit" name="submit" value="  确 定  " class="left" />
</p>
</form>
</fieldset>
</div>
</body>
</html>