检测浏览器信息
<html>
<body>
<script type="text/javascript">
document.write("<p>浏览器：")
document.write(navigator.appName + "</p>")
document.write("<p>浏览器版本：")
document.write(navigator.appVersion + "</p>")
document.write("<p>代码：")
document.write(navigator.appCodeName + "</p>")
document.write("<p>平台：")
document.write(navigator.platform + "</p>")
document.write("<p>Cookies 启用：")
document.write(navigator.cookieEnabled + "</p>")
document.write("<p>浏览器的用户代理报头：")
document.write(navigator.userAgent + "</p>")
</script>
</body>
</html>
