密码修改 代码错误

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pageEncoding="GB18030"%>
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<head>
<link rel="stylesheet" type="text/css"
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<script type="text/javascript" src="/js/prototype.js"></script>
<script type="text/javascript" language="javascript"
src="/js/common.js?v=20100909"></script>
<script type="text/javascript" language="javascript"
src="/gaiban/js/checkform.js"></script>
<script language="JavaScript">
/*验证密码相同*/
function charAllSame(str){
for(var i = 0 ; i < str.length - 1 ; i ++){
if (str.charAt(i) != str.charAt(i + 1)){
return false;
}
}
return true;
}
/*验证密码和用户名相同*/
function getSsn(username){
var pos = username.indexOf("@");
if(pos == -1)
return username;
else{
return username.substring(0,pos);
}
}//检查旧密码
function checkOldPassword(){
var hasErr = false;
var form = document.getElementById("form");
//检查旧密码
if(form.oldpass.value.length < 1){
document.getElementById("errPwd").innerHTML = "<font color='red'>请输入您现在的密码</font>";
document.getElementById("errPwd").style.display = "inline-block";
hasErr = true;
}else{
var hiddenPws=document.getElementById("hiddenPws");
if(form.oldpass.value!=hiddenPws){
document.getElementById("errPwd").innerHTML = "<font color='red'>输入的旧密码不正确</font>";
document.getElementById("errPwd").style.display = "inline-block";
hasErr = true;
}
document.getElementById("errPwd").style.display = "none";
}
return hasErr;
}
//检查新密码
function checkNewPassword(){
var form = document.getElementById("form");
var errNewPwdMsg = "";
var hasErr = false;
if(form.password.value.length < 1){
errNewPwdMsg = "<font color='red'>请输入新密码</font>";
}else if( charAllSame(form.password.value) ){
errNewPwdMsg = "<font color='red'>您的密码过于简单</font>";
}else if (form.oldpass.value == form.password.value){
errNewPwdMsg = "<font color='red'>新旧密码不能相同</font>";
}
if(errNewPwdMsg != ""){
document.getElementById("errNewPwd").innerHTML = errNewPwdMsg;
document.getElementById("errNewPwd").style.display = "inline-block";
hasErr = true;
}else{
document.getElementById("errNewPwd").style.display = "none";
}
return hasErr;
}
//检查新密码确认
function checkNewPasswordConfirm(){
var form = document.getElementById("form");
var hasErr = false;
if(form.confirmPassword.value != form.password.value ){
document.getElementById("errNewConfirmPwd").innerHTML="<font color='red'>您两次输入的新密码不一致，请确认</font>";
document.getElementById("errNewConfirmPwd").style.display="inline-block";
hasErr  = true;
}else{
document.getElementById("errNewConfirmPwd").style.display="none";
}
return hasErr;
}function checkdata() {

//检查旧密码
if(checkOldPassword()){
form.oldpass.focus();
    return false;
}

//检查新密码
if(checkNewPassword()){
form.password.focus();
    return false;
}

//检查新密码确认
if(checkNewPasswordConfirm()){
form.confirmPassword.focus();
    return false;
} //return true;}
</script>
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</div>
<form action="modify-pws.do" method="post" name="form" id="form">
<table id="member" class="editTable" width="100%" border="0"
cellpadding="0" cellspacing="1">
<colgroup>
<col width="120">
<col width="*">
</colgroup>
<tbody>
<tr>
<td class="orderNameTd">现在的密码:</td>
<td class="orderInputTd"><input name="oldpass" id="oldpass"
onblur="checkOldPassword()" class="editInput" type="password"
onblur="checkOldPassword()" /><span id="errPwd" class="err"></span></td>
   <input type="hidden" value="<c:out value='pws'/>" id="hiddenPws"/>
</tr>
<tr>
<td class="orderNameTd">设置新密码:</td>
<td class="orderInputTd"><input name="password" id="password"
onblur="checkNewPassword()" class="editInput" type="password"><span
id="errNewPwd" class="err"></span></td>

</tr>
<tr>
<td class="orderNameTd">确认新密码:</td>
<td class="orderInputTd"><input name="confirmPassword"
id="confirmPassword" onblur="checkNewPasswordConfirm()"
class="editInput" type="password"><span
id="errNewConfirmPwd" class="err"></span></td>
</tr>
<tr>
<td class="orderNameTd"></td>
<td class="orderInputTd"><input id="button" class="confirmBtn"
value="保存修改" type="submit" onclick="return checkdata();">
</td>
</tr>
</tbody>
</table>
</form>
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那位能够帮助看看代码哪里出现问题了，现在不能进行校验即使密码为空也能点击保存修改到另一界面

解决方案 »

  1.   

     if (form.oldpass.value != hiddenPws) 
    这句有问题哦，拿一个value和一个dom元素做对比，这样对比肯定是不等的。
    应该是if (form.oldpass.value != hiddenPws.value) 
      

  2.   

    问题1：
    if (form.oldpass.value != hiddenPws)  有误 
    应为 if (form.oldpass.value != hiddenPws.value)
    问题2：
    function checkdata() { // 检查旧密码
    if (checkOldPassword()) {
    form.oldpass.focus();
    return false;
    } // 检查新密码
    if (checkNewPassword()) {
    form.password.focus();
    return false;
    } // 检查新密码确认
    if (checkNewPasswordConfirm()) {
    form.confirmPassword.focus();
    return false;
    } // return true;}这三个函数中 form未定义 需在函数第一句加上 var form = document.getElementById("form");