貌似javascript出错了，请高手帮我看看错在哪？为什么错？ - 黑马程序员技术交流社区

<%@ page language="java" import="java.util.*" pageEncoding="utf-8" contentType="text/html"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>登录界面</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<script language="JavaScript">
function Validate()
{
//得到用户输入的信息
userid=form.userid.value;
userpass=form.userpass.value;
//判断用户名的长度
if(!maxLength(userid,12))
{
alert("拥护名长度大于12！");
form.userid.focuse();
return false;
}
if(!maxLength(userpass,12))
{
alert("密码长度大于12！");
form.userpass.focuse();
return false;
}
//判断拥护名和密码是否一致
if(userid==userpass)
{
alert("拥护名和密码不能相同");
form.userpass.focuse();
return false;
}
return true;
}
//验证是否满足最小长度
function minLength(str,length)
{
if(str.length>=length)
return true;
else
return false;
}
function maxLength(str,length)
{
if(str.length<=length)
return true;
else
return false;
}
window.open("http://www.baidu.com","window2")
</script>
<body>
<form action="MyJsp2.jsp" onsubmit="return Validate();" method="post">
用户名：<input type="text" name="userid"><br>
密码：<input type="password" name="userpass"><br>
<input type="reset" value="重填" >
<input type="submit" value="确定">
</form>
</body>
</html>

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