<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>测试请求</title>
</head>
<script type="text/javascript" src="ajax.js"></script>
<body>
<input type="button" onclick="createXMLHttpRequest()" value="测试请求" />
<div id="contain"></div>
</body>
</html>
