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How do i return two alerts in JS?

I wrote this code for validate password and i need to show user two different alerts.
(pw.length < 8) when this condition executed "Password need minimum 8 characters"
(pw != cpw) "Passwords does not match"
I already tried all if statements but it not gonna help.
<script>
function validatePassword(){
var pw= document.getElementById("txtPassword").value;
var cpw= document.getElementById("txtCPassword").value;
if((pw.length < 8)||(pw != cpw))
{
alert("please enter the correct password")
return false;
Event.preventDefault();
}
return true;
}
</script>
Does anyone know if something...

Use a boolean and two if statements. Return the boolean at the end for true or false.
function validatePassword() {
const pw = document.getElementById("txtPassword").value;
const cpw = document.getElementById("txtCPassword").value;
let isValid = true;
if (pw.length < 8) {
alert('Password is not long enough. Minimum length is 8 characters.');
isValid = false;
}
if(pw !== cpw)) {
alert('Passwords do not match'.);
isValid = false;
}
return isValid;
}
Or have both messages in one alert using an array
function validatePassword() {
const pw = document.getElementById("txtPassword").value;
const cpw = document.getElementById("txtCPassword").value;
const errors = [];
if (pw.length < 8) {
errors.push('Password is not long enough. Minimum length is 8 characters.');
}
if(pw !== cpw)) {
errors.push('Passwords do not match.');
}
if (errors.length) {
alert(errors.join('\n'));
return false;
}
return true;
}

here is most basic version you can use this type of code.
function validatePassword(){
var pw= document.getElementById("txtPassword").value;
var cpw= document.getElementById("txtCPassword").value;
if((pw.length < 8))
{
alert("please enter the correct password")
return false;
} else if((cpw != pw)) {
alert("Passwords does not match")
} else {
alert("Password is correct!")
return true;
}
}
<form id="form">
<input type="text" id="txtPassword">
<input type="text" id="txtCPassword">
<input onclick="event.preventDefault();validatePassword()" type="submit" value="Submit">
</form>
This will do.

<script>
var pw= document.getElementById("txtPassword").value;
var cpw= document.getElementById("txtCPassword").value;
function validatePassword(){
if(pw.length < 8)
{
alert("Password need minimum 8 characters")
}
if(pw != cpw){
alert("Passwords does not match")
}
}

I don't think you need to show 2 alerts. When txtPassword is invalid, users have to retype both passwords whether passwords match or not. There is no point in showing "Passwords does not match" message in that case.
To know how to show 2 alerts, see my second code.
First, here is another solution:
const FORM = document.querySelector('#form');
const PSW = document.querySelector('#txtPassword');
const C_PSW = document.querySelector('#txtCPassword');
FORM.addEventListener('submit', event => {
event.preventDefault();
if (!validatePassword()) return;
console.log('Submitted');
})
function validatePassword() {
let pw = PSW.value;
let cpw = C_PSW.value;
if (pw.length < 8) {
alert('please enter the correct password');
return;
} else if (pw !== cpw) {
alert('Passwords does not match');
return;
}
return true;
}
<form action="" id="form">
<input type="password" id="txtPassword">
<input type="password" id="txtCPassword">
<input type="submit" value="Submit">
</form>
To show 2 alerts:
function validatePassword() {
let pw = PSW.value;
let cpw = C_PSW.value;
if (pw.length < 8) {
alert('please enter the correct password');
if (pw !== cpw) {
alert('Passwords does not match');
}
return;
} else if (pw !== cpw) {
alert('Passwords does not match');
return;
}
return true;
}

How can I prevent my form from being submitted?

I want the form to not be submitted when the inputs are wrong. The error messages do appear but my form still gets submitted nonetheless. I cant seem to find the problem would appreciate the help thank you :)-----------------------------------------------------------------------------------------------------
<form action="/handleServer.php" method="get" onsubmit="return validateForm()">
<!-- starting with first name-->
<h4 class="heading" >First name:</h4>
<input id="fname" type="text" name="fname" size="30">
<span id="errorName" class="error"></span>
<!-- module code -->
<h4 class="heading">Module code:</h4>
<input id="mcode" type="text" name="mcode" size="30">
<span id="errorCode" class="error"></span>
<input type="submit" value="Submit">
</form>
<script>
//input field using if-else statements
function validateForm() {
var fname = document.getElementById("fname").value;
var mcode = document.getElementById("mcode").value;
var errorN = document.getElementById("errorName");
var errorC = document.getElementById("errorCode");
//test for an empty input
if (fname === '' && mcode === '') {
errorN.innerHTML = "Please fill in the blank";
errorC.innerHTML = "Please fill in the blank";
return false;
}
if (fname === '') {
errorN.innerHTML = "Please fill in the blank";
return false;
} else {
errorN.innerHTML = "";
}
if (mcode === '') {
errorC.innerHTML = "Please fill in the blank";
return false;
} else {
errorC.innerHTML = "";
}
//test for invalid format
if (/^[A-Z]\D{2,30}$/.test(fname) == false) //if its true, it will go to the second input
{
errorN.innerHTML = "One capital letter and no digits allowed";
fname.style.color="red";
return false;
} else {
fname.innerHTML = "";
}
if (/^[a-z]{3}[1-9]\d{4}$/.test(mcode) == false)
{
errorC.innerHTML = "Wrong format";
mcode.style.color="red";
return false;
} else {
mcode.innerHTML = "";
}
return true; }

The problem seems to be these four lines of code:
fname.style.color="red";
fname.innerHTML = "";
mname.style.color="red";
mname.innerHTML = "";
fname and mname are strings, therfore fname.style and mname.style both result in undefined. Obviously you can't set properties on undefined which is why you are getting an error.
//You are getting the value properties which are strings:
var fname = document.getElementById("fname").value;
var mcode = document.getElementById("mcode").value;
The error is stopping your code before you can return false, preventing the cancelation of the form submit.
The solution is to instead make two more variables storing the actual input elements:
var finput = document.getElementById("fname");
var minput = document.getElementById("mname");
Then change lines:
fname.style.color="red";
fname.innerHTML = "";
mname.style.color="red";
mname.innerHTML = "";
to:
finput.style.color="red";
finput.innerHTML = "";
minput.style.color="red";
minput.innerHTML = "";
Here is a working version:
<form action="/handleServer.php" method="get" onsubmit="return validateForm()">
<!-- starting with first name-->
<h4 class="heading">First name:</h4>
<input id="fname" type="text" name="fname" size="30">
<span id="errorName" class="error"></span>
<!-- module code -->
<h4 class="heading">Module code:</h4>
<input id="mcode" type="text" name="mcode" size="30">
<span id="errorCode" class="error"></span>
<input type="submit" value="Submit">
</form>
<script>
//input field using if-else statements
function validateForm() {
var finput = document.getElementById("fname");
var minput = document.getElementById("mname");
var fname = document.getElementById("fname").value;
var mcode = document.getElementById("mcode").value;
var errorN = document.getElementById("errorName");
var errorC = document.getElementById("errorCode");
//test for an empty input
if (fname === '' && mcode === '') {
errorN.innerHTML = "Please fill in the blank";
errorC.innerHTML = "Please fill in the blank";
return false;
}
if (fname === '') {
errorN.innerHTML = "Please fill in the blank";
return false;
} else {
errorN.innerHTML = "";
}
if (mcode === '') {
errorC.innerHTML = "Please fill in the blank";
return false;
} else {
errorC.innerHTML = "";
}
//test for invalid format
if (/^[A-Z]\D{2,30}$/.test(fname) == false) //if its true, it will go to the second input
{
errorN.innerHTML = "One capital letter and no digits allowed";
finput.style.color = "red";
return false;
} else {
finput.innerHTML = "";
}
if (/^[a-z]{3}[1-9]\d{4}$/.test(mcode) == false) {
errorC.innerHTML = "Wrong format";
minput.style.color = "red";
return false;
} else {
minput.innerHTML = "";
}
return true;
}
</script>

Pass the event to the form validation function
onsubmit="return validateForm(e)"
Then prevent default submission using
e.preventDefault();

Your return statement should be inside a condition. Right now you're existing the condition and ending the function with a return true; regardless of what the conditional statements have already returned. So:
if (fname === '' && mcode === '') {
errorN.innerHTML = "Please fill in the blank";
errorC.innerHTML = "Please fill in the blank";
return false;
}else{
return true; // THIS IS WHERE YOU NEED TO RETURN TRUE
}
I see you're returning false in multiple if statements. You'll need to find a way to unify the conditions so that you have one return only for for either true or false.

No alert message after user inputs correct validation (javascript)

After the user enters into the field and press "check form" there is suppose to be a popout helper message alerting the user instead it just goes to the next page.
What is wrong in the code that it doesn't show any alert message after the user validates?
I'm trying to make it in such a way that each field gets an alert after validating
function formValidation() {
var firstname = document.getElementById('firstname');
var zip = document.getElementById('zip');
var state = document.getElementById('state');
var username = document.getElementById('username');
var email = document.getElementById('email');
if(isAlphabet(firstname, "Please enter only letters for first name")){
if(isNumeric(zip, "Please enter only a valid zip code")){
if(madeSelection(state, "Please choose a state")){
if(lengthRestriction(username, 6, 8)){
if(emailValidator(email, "Please enter a valid email address.")){
alert("The following information has been entered: \n"+document.getElementById('firstname').value);
return true;
}
}
}
}
}
return false;
}
function notEmpty(elem, helperMsg){
if(elem.value.length == 0){
alert(helperMsg);
elem.focus();
return false;
}
return true;
}
function isNumeric(elem, helperMsg){
var numericExpression = /^[0-9]+$/;
if(elem.value.match(numericExpression)){
return true;
}else{
alert(helperMsg);
elem.focus();
return false;
}
}
function isAlphabet(elem, helperMsg){
var alphaExp = /^[a-zA-Z]+$/;
if(elem.value.match(alphaExp)){
return true;
}else{
alert(helperMsg);
elem.focus();
return false;
}
}
function isAlphanumeric(elem, helperMsg){
var alphaExp = /^[0-9a-zA-Z]+$/;
if(elem.value.match(alphaExp)){
return true;
}else{
alert(helperMsg);
elem.focus();
return false;
}
}
function lengthRestriction(elem, min, max){
var uInput = elem.value;
if(uInput.length >= min && uInput.length <=max){
return true;
}else{
alert("Please enter between " +min+" and " +max+" characters");
elem.focus();
return false;
}
}
function madeSelection(elem, helperMsg){
if(elem.value == "Please Choose"){
alert(helperMsg);
elem.focus();
return false;
}else{
return true;
}
}
function emailValidator(elem, helperMsg){
var emailExp = /^[\w\-\.\+]+\#[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
if(elem.value.match(emailExp)){
return true;
}else{
alert(helperMsg);
elem.focus();
return false;
}
}
<form onsubmit='return formValidator()' action="Lab17b.html" method="get">
First Name: <input type='text' id='firstname' name='first' /><br />
Zip Code: <input type='text' id='zip' name='zip'/><br />
State: <select id='state' name='state'>
<option>Please Choose</option>
<option>AL</option>
<option>TX</option>
<option>CA</option>
<option>WI</option>
</select><br />
Username(6-8 characters): <input type='text' id='username' name='username' /><br />
Email: <input type='text' id='email' name='email'/><br />
<input type='submit' value='Check Form' />
</form>

You have given wrong function name in onsubmit method
<form onsubmit='return formValidation()' action="Lab17b.html" method="get">
Fiddle -- https://jsfiddle.net/knmajLeg/

As RahulB said, your function name was wrong:
formValidator vs formValidation
By the way, if you're interested, here your code in an other way.
Remember: your code needs to be clean/logical/semantical to debug it without effort.
Every time you repeat a bunch of code, try to make a method.
function formValidator() {
// Notice how we can see/understand the logical of
// the function
let informationAreValid =
firstNameIsValid() &&
zipIsValid() &&
stateIsValid() &&
userNameIsValid() &&
mailIsValid()
if ( informationAreValid )
{
alert("The following information has been entered: \n"+document.getElementById('firstname').value);
}
return informationAreValid ;
}
// The core of the validation
//
// #param {String} type Type of validation ('notEmpty', etc.)
// #param {DOMElement} elem The field
// #param {AnyValue} expected The value expected, if any
function isConform(type, elem, expected) {
let value = elem.value ;
switch ( type )
{
case 'notEmpty':
return value.length > 0;
case 'isNumeric':
return value.match(/^[0-9]+$/);
case 'isAlphabet':
return value.match(/^[a-zA-Z]+$/);
case 'isAlphaNum':
return value.match(/^[0-9a-zA-Z]+$/);
case 'isNotEqual':
return value != expected ;
case 'isEqual':
return value === expected ;
case 'isMailValid':
return value.match(/^[\w\-\.\+]+\#[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/);
case 'isBetween':
value = value.length ;
return value >= expected[0] && value <= expected[1]
}
}
// The checker
//
// We validate the values, send a alert message if information
// is bad and focus in the field.
//
// #return true if value of Dom element with id +idElem+
// match against the +typeValidation+ and the +expected+
// value if any.
// Otherwise, display an alert message and return false
//
function check(typeValidation, idElem, expected, errorMsg ){
let elem = document.getElementById( idElem ) ;
if ( isConform(typeValidation, elem, expected) ) { return true }
switch ( typeValidation ) {
case 'isBetween':
let [min, max] = expected ;
errorMsg = eval('`'+errorMsg+'`') ;
}
alert(errorMsg);
elem.focus() ;
return false ;
}
// Check method of every form field
//
// Here's is defined the error messages
function firstNameIsValid() {
let res = check('notEmpty', 'firstname', null, "First name is required") ;
if ( ! res ) { return false }
return check('isAlphabet', 'firstname', "Please enter only letters for first name");
}
function zipIsValid(){
return check('isNumeric', 'zip', null, "Please enter only a valid zip code") ;
}
function stateIsValid()
{
return check('isNotEqual', 'state', "Please Choose", "Please choose a state") ;
}
function mailIsValid()
{
return check('isMailValid', 'email', null, "Please enter a valid email address") ;
}
function userNameIsValid()
{
return check('isBetween', 'username', [6, 8], "Please enter between ${min} and ${max} characters") ;
}
<form onsubmit='return formValidator()' action="" method="get">
First Name: <input type='text' id='firstname' name='first' /><br />
Zip Code: <input type='text' id='zip' name='zip'/><br />
State: <select id='state' name='state'>
<option>Please Choose</option>
<option>AL</option>
<option>TX</option>
<option>CA</option>
<option>WI</option>
</select><br />
Username(6-8 characters): <input type='text' id='username' name='username' /><br />
Email: <input type='text' id='email' name='email'/><br />
<input type='submit' value='Check Form' />
</form>

Javascript code won't work on my form [closed]

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I am working on a form but my form is not working whenever I press submit. I am trying to evaluate whether sections of the form is empty, the email, and the number of digits for a user id. When I press submit nothing happens and I have been stuck like this for a while. FYI I have to use plain js and html.
HTML:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Student Login Form</title>
<link rel='stylesheet' href='studentform.css' type='text/css' />
<script src="studentform.js"></script>
</head>
<body onload="document.form.studentid.focus();">
<h1>Student Login</h1>
<div class="container">
<form name="form" onsubmit="return validate();">
<label for="studentid">Student ID:</label>
<input type="number" name="studentid" maxlength="8" id="studentid" required />
<label for="name">Name:</label>
<input type="text" name="name" size="50" id="name" required />
<label for="email">Email:</label>
<input type="email" name="email" size="50" id="email" required />
<label for="emailconfirm">Email Confirmation:</label>
<input type="checkbox" name="emailconfirm" checked /><span>Send an email confirmation</span>
<select>
<option selected>Student Registration</option>
<option>Transcript</option>
</select>
<input type="submit" name="submit" value="Submit" />
</form>
</div>
`
Js.
function validate(){
var studentid = document.getElementById("studentid").value;
var name = document.getElementById("name").value;
var email = document.getElementById("email").value;
if(nameEmpty(name))
{
if(studentidEmpty(studentid))
{
if(emailEmpty(email))
{
if(digitCheck(studentid))
{
if checkEmail(email)
{
verify(name, studentid)
}
}
}
}
}
return false;
}
function studentidEmpty(studentid){
if ( studentid == "" ){
alert("Please provide your student id!");
studentid.focus();
return false;
}
}
function nameEmpty(name){
if ( name == "" ){
alert("Please provide your name!");
name.focus() ;
return false;
}
}
function emailEmpty(email){
if( email == "" ){
alert( "Please provide your email!" );
email.focus();
return false;
}
function digitCheck(studentid){
var ok = studentid.search(".{8,}");
if (ok!=0){
alert("Please provide ID with 8 digits.");
return false;
}
}
function checkEmail(email) {
var filter = /^([a-zA-Z0-9_\.\-])+\#(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
if (!filter.test(email.value)) {
alert('Please provide a valid email address');
email.focus;
return false;
}
}
function verify(name, studentid){
var personList = [["Joe",11111111],["Tammy",22222222],["Jones",33333333]];
for (list in personList) {
if (name in list && studentid in list){
alert("Welcome! An email verification with be sent soon.");
return true;
} else{
alert("Student Name and/or ID not found in records");
return false;
}
}
}
}

I think you should fix this line:
if checkEmail(email)
to
if (checkEmail(email))
you have forgotten the parentheses.
Edit:
I have completely fixed your code. Your errors:
you have forgotten to add else clauses for your field checkers, they were only returning false if the validation failed
your checking "if array contains value" was wrong, I have added a method from here
you were trying to focus on the values, not tags
you were trying to test email value from the "value of the value" not "value"
function validate() {
var studentid = document.getElementById("studentid").value;
var name = document.getElementById("name").value;
var email = document.getElementById("email").value;
if (nameEmpty(name)) {
if (studentidEmpty(studentid)) {
if (emailEmpty(email)) {
if (digitCheck(studentid)) {
if (checkEmail(email)) {
return verify(name, studentid);
}
}
}
}
}
return false;
}
function studentidEmpty(studentid) {
if (studentid == "") {
alert("Please provide your student id!");
document.getElementById("studentid").focus();
return false;
} else {
return true;
}
}
function nameEmpty(name) {
if (name == "") {
alert("Please provide your name!");
document.getElementById("name").focus();
return false;
} else {
return true;
}
}
function emailEmpty(email) {
if (email == "") {
alert("Please provide your email!");
document.getElementById("email").focus();
return false;
} else {
return true;
}
}
function digitCheck(studentid) {
var ok = studentid.search(".{8,}");
if (ok != 0) {
alert("Please provide ID with 8 digits.");
return false;
} else {
return true;
}
}
function checkEmail(email) {
var filter = /^([a-zA-Z0-9_\.\-])+\#(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
if (!filter.test(email)) {
alert('Please provide a valid email address');
email.focus;
return false;
} else {
return true;
}
}
function verify(name, studentid) {
var personList = [
["Joe", 11111111],
["Tammy", 22222222],
["Jones", 33333333]
];
for (list in personList) {
if (contains.call(list, name) && contains.call(list, studentid)) {
alert("Welcome! An email verification with be sent soon.");
return true;
}
}
alert("Student Name and/or ID not found in records");
return false;
}
var contains = function(needle) {
// Per spec, the way to identify NaN is that it is not equal to itself
var findNaN = needle !== needle;
var indexOf;
if(!findNaN && typeof Array.prototype.indexOf === 'function') {
indexOf = Array.prototype.indexOf;
} else {
indexOf = function(needle) {
var i = -1, index = -1;
for(i = 0; i < this.length; i++) {
var item = this[i];
if((findNaN && item !== item) || item === needle) {
index = i;
break;
}
}
return index;
};
}
return indexOf.call(this, needle) > -1;
};
<div>
<form>
<label for="name">Name:</label>
<input type="text" name="name" size="50" id="name" required />
<label for="studentid">Student ID:</label>
<input type="number" name="studentid" maxlength="8" id="studentid" required />
<label for="email">Email:</label>
<input type="email" name="email" size="50" id="email" required />
<label for="emailconfirm">Email Confirmation:</label>
<input type="checkbox" name="emailconfirm" checked /><span>Send an email confirmation</span>
<select>
<option selected>Student Registration</option>
<option>Transcript</option>
</select>
<input onclick="return validate();" type="submit" name="submit" value="Submit" />
</form>
</div>

Validate function always return false !! It shouldn't.
function validate(){
var studentid = document.getElementById("studentid").value;
var name = document.getElementById("name").value;
var email = document.getElementById("email").value;
return nameEmpty(name) && studentidEmpty(studentid) && emailEmpty(email) && digitCheck(studentid) && checkEmail(email) && verify(name, studentid);
}
Then be sure your form looks like :
<form name="form" onsubmit="return validate();" action="javascript:void(0)">
</form>
And your autofocus input to look like :
<input type="number" name="studentid" maxlength="8" id="studentid" required autofocus/>

You're forgetting the parentheses.
It is also wrong to start and end each function, try using the code below with these corrections.
function validate() {
var studentid = document.getElementById("studentid").value;
var name = document.getElementById("name").value;
var email = document.getElementById("email").value;
if (nameEmpty(name)) {
if (studentidEmpty(studentid)) {
if (emailEmpty(email)) {
if (digitCheck(studentid)) {
if (checkEmail(email)) {
verify(name, studentid)
}
}
}
}
}
return false;
}
function studentidEmpty(studentid) {
if (studentid == "") {
alert("Please provide your student id!");
studentid.focus();
return false;
}
}
function nameEmpty(name) {
if (name == "") {
alert("Please provide your name!");
name.focus();
return false;
}
}
function emailEmpty(email) {
if (email == "") {
alert("Please provide your email!");
email.focus();
return false;
}
}
function digitCheck(studentid) {
var ok = studentid.search(".{8,}");
if (ok != 0) {
alert("Please provide ID with 8 digits.");
return false;
}
}
function checkEmail(email) {
var filter = /^([a-zA-Z0-9_\.\-])+\#(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
if (!filter.test(email.value)) {
alert('Please provide a valid email address');
email.focus;
return false;
}
}
function verify(name, studentid) {
var personList = [
["Joe", 11111111],
["Tammy", 22222222],
["Jones", 33333333]
];
for (list in personList) {
if (name in list && studentid in list) {
alert("Welcome! An email verification with be sent soon.");
return true;
} else {
alert("Student Name and/or ID not found in records");
return false;
}
}
}

Javascript form summary page

I have created a Javascript form with multiple functions, and I want to generate a summary page of all the values entered in the form after the submit button has been clicked. My question is how do I generate this summary page? (Please see my code below)
Thanks
<script type='text/javascript'>
function formValidator(){
// Make quick references to our fields
var firstname = document.getElementById('firstname');
var lastname = document.getElementById('lastname');
var addr = document.getElementById('addr');
var pcode = document.getElementById('pcode');
var course = document.getElementById('course');
var username = document.getElementById('username');
var email = document.getElementById('email');
// Check each input in the order that it appears in the form!
if(isAlphabet(firstname, "Please enter only letters for your name")){
if(isAlphanumeric(addr, "Numbers and Letters Only for Address")){
if(isNumeric(pcode, "Please enter a valid post code")){
if(madeSelection(course, "Please Choose a Course")){
if(lengthRestriction(username, 6, 8)){
if(emailValidator(email, "Please enter a valid email address")){
return true;
}
}
}
}
}
}
return false;
}
function notEmpty(elem, helperMsg){
if(elem.value.length == 0){
alert(helperMsg);
elem.focus(); // set the focus to this input
return false;
}
return true;
}
function isNumeric(elem, helperMsg){
var numericExpression = /^[0-9]+$/;
if(elem.value.match(numericExpression)){
return true;
}else{
alert(helperMsg);
elem.focus();
return false;
}
}
function isAlphabet(elem, helperMsg){
var alphaExp = /^[a-zA-Z]+$/;
if(elem.value.match(alphaExp)){
return true;
}else{
alert(helperMsg);
elem.focus();
return false;
}
}
function isAlphanumeric(elem, helperMsg){
var alphaExp = /^[0-9a-zA-Z]+$/;
if(elem.value.match(alphaExp)){
return true;
}else{
alert(helperMsg);
elem.focus();
return false;
}
}
function lengthRestriction(elem, min, max){
var uInput = elem.value;
if(uInput.length >= min && uInput.length <= max){
return true;
}else{
alert("Please enter between " +min+ " and " +max+ " characters");
elem.focus();
return false;
}
}
function madeSelection(elem, helperMsg){
if(elem.value == "Please Choose a Course"){
alert(helperMsg);
elem.focus();
return false;
}else{
return true;
}
}
function emailValidator(elem, helperMsg){
var emailExp = /^[\w\-\.\+]+\#[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
if(elem.value.match(emailExp)){
return true;
}else{
alert(helperMsg);
elem.focus();
return false;
}
}
</script>
<form name="javaform" action="javasummary.html" method="post" onsubmit="return formValidator();">
<label>First Name:</label> <input type='text' id='firstname' size='50'/><br />
<label>Last Name:</label> <input type='text' id='lastname' size='50'/><br />
<label>Address:</label> <input type='text' id='addr' size='50' /><br />
<label>Post Code:</label> <input type='text' id='pcode' size='50'/><br />
<label>Course:</label> <select id='course'>
<option>Please Choose a Course</option>
<option>PHP | £500 | 18/02/2012</option>
<option>CSS | £400 | 03/03/2011</option>
<option>HTML | £550 | 04/02/2012</option>
<option>FLASH(NEW) | £1220 | 25/12/2012</option>
</select><br />
<label>Username(6-8 characters):</label>
<input type='text' id='username' size='50'/><br />
<label>Email:</label>
<input type='text' id='email' size='50'/><br />
<input type='submit' value='Submit'>
</form>