JSP在表单中输入一个数字,判断后跳转并传入别的jsp界面。

不知道为啥只能跳转到Two.jsp
刚接触jsp,求指点

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<jsp:include page= "hello.txt"/>
<form action="Two.jsp" method="get" id="form0">
<p>请输入1-100之间的数字<input type="text" name="number"></p>
<button onclick="check()">提交</button>
</form>
<form action="Three.jsp" method="get" id="form1">
<input type="text"  name="number" value=document.forms[0].number.value hidden=true>
</form>
<script type="text/javascript">
function check(){
    int value=int(document.getElementByName("number").value);
    if (value>=50){
        document.getElementById("form1").submit();
    }
    else{
        document.getElementById("form0").submit();
    }
}</script>
</body>
</html>
function check(){
        var val=document.getElementByName("number").value;
        if (val>=50){
            document.getElementById("form1").submit();
        }
        else{
            document.getElementById("form0").submit();
        }
    }