JS 判断邮箱格式是否正确，注册时两次输入密码是否一致(转)

JS 判断邮箱格式是否正确，注册时两次输入密码是否一致， 用户名等输入不能为空，输入的长度控制。

[html] view plaincopyprint?

<script type="text/javascript">

var b = new Boolean();

b = false;

var b2 = new Boolean();

b2 = false;

function checkSubmit(){

var userName = form1.userName.value;

var passWord = form1.passWord.value;

var passWordDemo = form1.passWordDemo.value;

var email = form1.email.value;

if(userName!=0){

if(passWord!=0){

if(passWordDemo!=0){

if(email!=0)

{

if(b){

if(userName.length<20 && userName.length>4)

{

if(passWord.length<25 && passWord.length>5){

if(b2){

document.form1.submit();

}else{

alert("两次输入的密码不一致！");

}

}else{

alert("密码长度必须在6-25个字符之间！");

}

}else{

alert("用户名长度必须在5-20个字符之间！")

}

}else{

alert("请您确认您的邮箱是否填写正确！");

}

}else{

alert("请您先填写用来找回密码的邮箱！");

}

}else{

alert("您还没有填写确认密码!");

}

}else{

alert("请您先填写要注册的用户密码！");

}

}else{

alert("请您先填写要注册的用户名！");

}

}

function isPassWord(passWord,passWordDemo){

var passWord = document.getElementById(passWord).value;

var passWordDemo = document.getElementById(passWordDemo).value;

if(passWordDemo　!= passWord){

document.getElementById('spantest2').innerText = "两次输入的密码不一致！ ";

b2 = false;

return false;

}else{

document.getElementById('spantest2').innerText = "正确";

b2 = true;

return true;

}

}

function isEmail(email) {

var strEmail=document.getElementById(email).value;

if (strEmail.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1)

{

document.getElementById('spantest').innerText = "邮箱格式正确";

b = true;

return true;

}else{

document.getElementById('spantest').innerText = "邮箱格式错误！";

document.getElementById(email).focus();

b = false;

return false;

}

}

</script>

<script type="text/javascript">
var b = new Boolean();
b = false;
var b2 = new Boolean();
b2 = false;
function checkSubmit(){
var userName = form1.userName.value;
var passWord = form1.passWord.value;
var passWordDemo = form1.passWordDemo.value;
var email = form1.email.value;
if(userName!=0){
if(passWord!=0){
if(passWordDemo!=0){
if(email!=0)
{
if(b){
if(userName.length<20 && userName.length>4)
{
if(passWord.length<25 && passWord.length>5){
if(b2){
document.form1.submit();
}else{
alert("两次输入的密码不一致！");
}
}else{
alert("密码长度必须在6-25个字符之间！");
}

}else{
alert("用户名长度必须在5-20个字符之间！")
}
}else{
alert("请您确认您的邮箱是否填写正确！");
}
}else{
alert("请您先填写用来找回密码的邮箱！");
}
}else{
alert("您还没有填写确认密码!");
}
}else{
alert("请您先填写要注册的用户密码！");
}
}else{
alert("请您先填写要注册的用户名！");
}
}

function isPassWord(passWord,passWordDemo){

var passWord = document.getElementById(passWord).value;
var passWordDemo = document.getElementById(passWordDemo).value;

if(passWordDemo　!= passWord){
document.getElementById('spantest2').innerText = "两次输入的密码不一致！ ";
b2 = false;
return false;
}else{
document.getElementById('spantest2').innerText = "正确";
b2 = true;
return true;
}
}

function isEmail(email) {
var strEmail=document.getElementById(email).value;
if (strEmail.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1)
{
document.getElementById('spantest').innerText = "邮箱格式正确";
b = true;
return true;
}else{
document.getElementById('spantest').innerText = "邮箱格式错误！";
document.getElementById(email).focus();
b = false;
return false;
}

}
</script>

上面是js代码

下面是html部分代码：

定义<span>或者div来接受js中的结果。

<span id="spantest2"></span>