<%@ page language="java" contentType="text/html; charset=GB18030"
    pageEncoding="GB18030"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>date</title>
</head>
<body>
<form name="form1" action="" method="post" onsubmit="return judge()">
输入时间:格式为(HH:mm)<input type="text" name="shijian"><br>
<input type="submit" name="Submit" value="判断">
</form>
<script type="text/javascript">
function judge(){
if(document.form1.)
}</script></body>
</html>