今天准备用JavaScript做一个注册网页的验证，但是搞了一下午验证都没有成功，函数可以被调用。在函数的开头加一句测试弹窗时弹窗正确弹出，但是函数内的验证函数始终没有反应，求教一下论坛的大佬，我是在哪里出的问题，感谢！！！

代码如下：

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>注册界面</title>
    <link rel="stylesheet" type="text/css" href="css/register.css">
    <script type="text/javascript">
    window.alert("test");
        function checkRegisterINfo(form){
            /*判断姓名格式是否正确*/
            var RegisterNameCheck = document.getElementById("nameId").value;
            if(RegisterNameCheck=""){
                window.alert("姓名不能为空！");
                return false;
            }else{
                var rightName=/[\u4E00-\u9FA5]{2,16}/;
                if(rigntName.test(RegisterNameCheck)==true){
                }else{
                    window.alert("您输入的姓名不正确！");
                    return false;
                }
            }
            /*判断密码是否规范*/
            var RegisterPwdCheck = document.getElementById("pwdId").value;  
                var rightPwd=/^(\w){6,20}$/;
                    if(rightPwd.test(RegisterPwdCheck)==false){
                        window.alert("密码只能输入6-20个字母、数字、下划线");
                        return false;
                    }
            /*判断密保问题格式是否正确*/
            var RegisterQuestionCheck = document.getElementById("questionId").value;
                var rightQuestion=/[\u4E00-\u9FA5]{1,16}/;
                if(!rightQuestion.test(RegisterQuestionCheck)){
                    window.alert("密保问题支持1-16位汉字！");
                    return false;
                }
            /*判断密保答案格式是否正确*/
            var RegisterAnswerCheck = document.getElementById("answerId").value;
                var rightAnswer=/[\u4E00-\u9FA5]{1,50}/;
                if(!rightAnswer.test(RegisterAnswerCheck)){
                    window.alert("密保答案支持1-50位汉字！");
                    return false;
                }
        }
    </script>
</head>
<body>

<div class="main">
    <div class="title">
        <span>用户注册</span>
    </div>
    <form name="registerForm" method="post" action="" onsubmit="return checkRegisterINfo(registerForm)">   
        <!--输入框-->
        <div class="input-content">
            <div>
                <input type="text" autocomplete="off" id="nameId"
                       placeholder="用户名" name="Registerusername" required/>
            </div>

            <div style="margin-top: 16px">
                <input type="password" autocomplete="off" id="pwdId"
                placeholder="登录密码" name="Registerpassword" required maxlength="32"/>
            </div>
            <div style="margin-top: 16px">
                <input type="text" autocomplete="off" id="questionId"
                placeholder="密保问题" name="Registerquestion" required maxlength="32"/>
            </div>
            <div style="margin-top: 16px">
                <input type="text" autocomplete="off" id="answerId"
                placeholder="密保答案" name="Registeranswer" required maxlength="32"/>
            </div>
        </div>

        <!--登入按钮-->
        <div style="margin-top: 105px">
            <button type="submit" class="enter-btn" >登录</button>
        </div>

        <div class="foor">
            <div class="left"><span>忘记密码</span></div>

            <div class="right"><span>用户登录</span></div>
        </div>
    </form>

</div>
</body>
</html>