Develop Reference

Disabling a button on empty <select> list?

`I've created a form that allows a user to enter their details and have their first and last names displayed along with a numerical ID. There is a 'Delete' button allowing the user to remove whatever name they select.
by default, the 'Delete' button should be disabled until the <select> list is populated. If all names are deleted from the list - the 'Delete' button should disable again.
That's where im struggling. I cant get the 'Delete' button to enable when a name is added to the list.
Below is my HTML and JavaScript:
MemberList
<h1>Member List</h1>
<form method="post" id="_frmFull">
<label for="lstMembers">Member:</label>
<select size="10"
name="lstMembers"
id="lstMembers">
</select>
<button type="button"
id="addMember"
name="Add Member">
Add Member
</button>
<button type="button"
name="Delete Member"
id="delete">
Delete Member</button>
<div id="Modal" class="modal">
<div class="modal-form">
<label for="memTitle">Title:</label>
<input list="memTitles" name="memTitles" id="memTitle">
<datalist id="memTitles">
<option value="Dr">
<option value="Mr">
<option value="Mrs">
<option value="Ms">
</datalist>
<label for="firstName">First Name:</label>
<input type="text" name="firstName" id="firstName" required="required">
<label for="middleName">Middle Name (optional):</label>
<input type="text" name="middleName" id="middleName">
<label for="lastName">Last Name:</label>
<input type="text" name="lastName" id="lastName" required="required">
<br><br>
<label for="Country">Country:</label>
<input list="countries" name="Country" id="Country">
<datalist id="countries">
<option value="Australia">
<option value="United Kingdom">
<option value="America">
<option value="New Zealand">
</datalist>
<label for="Gender">Gender:</label>
<select name="Gender" id="Gender">
<option>Male</option>
<option>Female</option>
<option>Other</option>
</select>
<label for="birthDate">Birthdate:</label>
<input type="date"
id="birthDate"
min="1900-01-01"
max="2022-12-31" required="required">
<br><br>
<div id="resiAddress">
<p>Residential Address:</p>
<br>
<label for="txtResidentialAddress">Address:</label>
<input type="text" required="required" id="txtResidentialAddress" oninput="copyAddressFields();">
<br><br>
<label for="txtResiPostCode">Postcode:</label>
<input type="text" required="required" id="txtResiPostCode">
<br><br>
<label for="txtResiSuburb">Suburb:</label>
<input type="text" required="required" id="txtResiSuburb">
<br><br>
<label for="txtResiCountry" class="country">Country</label>
<input type="text" required="required" id="txtResiCountry">
<br><br>
<label for="txtResiState">State:</label>
<input type="text" required="required" id="txtResiState">
</div>
<br><br>
<label for="chkSynchronizeAddresses">Same as residential </label>
<input type="checkbox" required="required" id="chkSynchronizeAddresses" >
<div id="postAddress">
<p>Postal Address:</p>
<br>
<label for="txtPostalAddress">Address:</label>
<input type="text" id="txtPostalAddress">
<br><br>
<label for="txtPostCode">Postcode:</label>
<input type="text" id="txtPostCode">
<br><br>
<label for="txtPostalSuburb">Suburb:</label>
<input type="text" id="txtPostalSuburb">
<br><br>
<label for="txtPostalCountry">Country:</label>
<input type="text" id="txtPostalCountry">
<br><br>
<label for="txtPostalState">State:</label>
<input type="text" id="txtPostalState">
</div>
<br><br>
<label for="txtPhone" class="phone">Phone: (optional)</label>
<input id="txtPhone" type="text">
<br><br>
<label for="txtMobile" class="mobile">Mobile: (optional)</label>
<input id="txtMobile" type="text">
<br><br>
<button type="button" name="save" id="save">Save</button>
<br><br>
<button type="button"
name="cancel"
id="closeModal">
Cancel</button>
</div>
</div>
</form>
<script>
console.log("Log test - please work!!")
const addBtn = document.getElementById("addMember");
const modal = document.getElementById("Modal");
const cancelBtn = document.getElementById("closeModal");
let chkSynchronizeAddresses = document.getElementById("chkSynchronizeAddresses");
const _frmFull = document.getElementById("_frmFull");
let Member = document.getElementById("lstMembers");
let Delete = document.getElementById("delete");
let save = document.getElementById("save");
let fName = document.getElementById("firstName");
let lName = document.getElementById("lastName");
let birthDate = document.getElementById("birthDate");
Delete.disabled = Member.value === 1;
addBtn.onclick = function (){
openPopUp();
console.log('function - correct');
}
cancelBtn.onclick = function (){
let closeTrue = confirm("Close form? You've not saved anything.")
if (closeTrue === true) {
closePopUp();
}
}
chkSynchronizeAddresses.onclick = function (){
console.log("Is this working??");
if (chkSynchronizeAddresses.checked){
document.getElementById("txtPostalAddress").setAttribute("readonly", "true");
document.getElementById("txtPostCode").setAttribute("readonly", "true");
document.getElementById("txtPostalState").setAttribute("readonly", "true");
document.getElementById("txtPostalSuburb").setAttribute("readonly", "true");
document.getElementById("txtPostalCountry").setAttribute("readonly", "true");
copyAddressFields();
}
else {
document.getElementById("txtPostalAddress").removeAttribute("readonly");
document.getElementById("txtPostCode").removeAttribute("readonly")
document.getElementById("txtPostalState").removeAttribute("readonly");
document.getElementById("txtPostalSuburb").removeAttribute("readonly");
document.getElementById("txtPostalCountry").removeAttribute("readonly");
}
}
function copyAddressFields () {
if (chkSynchronizeAddresses.checked){
document.getElementById("txtPostalAddress").value = document.getElementById("txtResidentialAddress").value;
document.getElementById("txtPostCode").value = document.getElementById("txtResiPostCode").value;
document.getElementById("txtPostalSuburb").value = document.getElementById("txtResiSuburb").value;
document.getElementById("txtPostalState").value = document.getElementById("txtResiState").value;
document.getElementById("txtPostalCountry").value = document.getElementById("txtResiCountry").value;
}
}
let idCount = 0
save.onclick = function (){
let fNameValue = fName.value
let lNameValue = lName.value
let bDateValue = birthDate.value
let pCountryValue = document.getElementById("txtPostalCountry").value
let pSuburbValue = document.getElementById("txtPostalSuburb").value
let pStateValue = document.getElementById("txtPostalState").value
let pCodeValue = document.getElementById("txtPostCode").value
let pAddressValue = document.getElementById("txtPostalAddress").value
if (fNameValue === ""){
alert("Please enter your first name to proceed");
return false;
}
else
if (lNameValue === "") {
alert("Please enter your last name to proceed");
return false;
} else if (bDateValue === "") {
alert("Please select a DOB to proceed");
return false;
} else if (pCountryValue === "") {
alert("Please enter your country to continue");
return false;
} else if (pSuburbValue === "") {
alert("Please enter your suburb to continue");
return false;
} else if (pCodeValue === "") {
alert("Please enter your postcode to continue");
return false;
} else if (pAddressValue === "") {
alert("Please enter your Address to continue");
return false;
} else if (pStateValue === "") {
alert("Please enter your state to continue");
return false;
} else {
Member.innerHTML +=
`<option value= >${idCount} ${_frmFull.firstName.value} ${_frmFull.lastName.value}<option>`
idCount++
console.log("check - is increase even working????")
}
closePopUp();
return true;
}
function closePopUp() {
modal.style.display="none";
}
function openPopUp() {
modal.style.display = "block";
}
Delete.onclick = function removeOption () {
Member.remove(Member.options);
console.log("is remove being triggered??")
}
if (Member.options.length == ""){
Delete.disabled = true
}
else {
Delete.disabled = false
}
</script>
</body>
`

The reason why the Delete button is not enabling is because the code that is supposed to enable the Delete button is only run once, when the page loads.
Assuming that this is the code that is supposed to enable the button:
if (Member.options.length == 0){ // changed from Member.options.length == ""
Delete.disabled = true
} else {
Delete.disabled = false
}
This code is only run once, when the page loads and the JavaScript code is run. In order to enable the button properly, we need to run this code every time that Member.options.length changes. One way you can do this is place the code snippet above for disabling/enabling the Delete button inside the onclick listener for the save button and to re-check every time a new user is saved. You would have to add this snippet into every place in your code where Member.options.length could change (inside the listener for the delete button as well).
Full updated code:
MemberList
<h1>Member List</h1>
<form method="post" id="_frmFull">
<label for="lstMembers">Member:</label>
<select size="10"
name="lstMembers"
id="lstMembers">
</select>
<button type="button"
id="addMember"
name="Add Member">
Add Member
</button>
<button type="button"
name="Delete Member"
id="delete">
Delete Member</button>
<div id="Modal" class="modal">
<div class="modal-form">
<label for="memTitle">Title:</label>
<input list="memTitles" name="memTitles" id="memTitle">
<datalist id="memTitles">
<option value="Dr">
<option value="Mr">
<option value="Mrs">
<option value="Ms">
</datalist>
<label for="firstName">First Name:</label>
<input type="text" name="firstName" id="firstName" required="required">
<label for="middleName">Middle Name (optional):</label>
<input type="text" name="middleName" id="middleName">
<label for="lastName">Last Name:</label>
<input type="text" name="lastName" id="lastName" required="required">
<br><br>
<label for="Country">Country:</label>
<input list="countries" name="Country" id="Country">
<datalist id="countries">
<option value="Australia">
<option value="United Kingdom">
<option value="America">
<option value="New Zealand">
</datalist>
<label for="Gender">Gender:</label>
<select name="Gender" id="Gender">
<option>Male</option>
<option>Female</option>
<option>Other</option>
</select>
<label for="birthDate">Birthdate:</label>
<input type="date"
id="birthDate"
min="1900-01-01"
max="2022-12-31" required="required">
<br><br>
<div id="resiAddress">
<p>Residential Address:</p>
<br>
<label for="txtResidentialAddress">Address:</label>
<input type="text" required="required" id="txtResidentialAddress" oninput="copyAddressFields();">
<br><br>
<label for="txtResiPostCode">Postcode:</label>
<input type="text" required="required" id="txtResiPostCode">
<br><br>
<label for="txtResiSuburb">Suburb:</label>
<input type="text" required="required" id="txtResiSuburb">
<br><br>
<label for="txtResiCountry" class="country">Country</label>
<input type="text" required="required" id="txtResiCountry">
<br><br>
<label for="txtResiState">State:</label>
<input type="text" required="required" id="txtResiState">
</div>
<br><br>
<label for="chkSynchronizeAddresses">Same as residential </label>
<input type="checkbox" required="required" id="chkSynchronizeAddresses" >
<div id="postAddress">
<p>Postal Address:</p>
<br>
<label for="txtPostalAddress">Address:</label>
<input type="text" id="txtPostalAddress">
<br><br>
<label for="txtPostCode">Postcode:</label>
<input type="text" id="txtPostCode">
<br><br>
<label for="txtPostalSuburb">Suburb:</label>
<input type="text" id="txtPostalSuburb">
<br><br>
<label for="txtPostalCountry">Country:</label>
<input type="text" id="txtPostalCountry">
<br><br>
<label for="txtPostalState">State:</label>
<input type="text" id="txtPostalState">
</div>
<br><br>
<label for="txtPhone" class="phone">Phone: (optional)</label>
<input id="txtPhone" type="text">
<br><br>
<label for="txtMobile" class="mobile">Mobile: (optional)</label>
<input id="txtMobile" type="text">
<br><br>
<button type="button" name="save" id="save">Save</button>
<br><br>
<button type="button"
name="cancel"
id="closeModal">
Cancel</button>
</div>
</div>
</form>
<script>
console.log("Log test - please work!!")
const addBtn = document.getElementById("addMember");
const modal = document.getElementById("Modal");
const cancelBtn = document.getElementById("closeModal");
let chkSynchronizeAddresses = document.getElementById("chkSynchronizeAddresses");
const _frmFull = document.getElementById("_frmFull");
let Member = document.getElementById("lstMembers");
let Delete = document.getElementById("delete");
let save = document.getElementById("save");
let fName = document.getElementById("firstName");
let lName = document.getElementById("lastName");
let birthDate = document.getElementById("birthDate");
Delete.disabled = Member.options.length == 0
addBtn.onclick = function (){
openPopUp();
console.log('function - correct');
}
cancelBtn.onclick = function (){
let closeTrue = confirm("Close form? You've not saved anything.")
if (closeTrue === true) {
closePopUp();
}
}
chkSynchronizeAddresses.onclick = function (){
console.log("Is this working??");
if (chkSynchronizeAddresses.checked){
document.getElementById("txtPostalAddress").setAttribute("readonly", "true");
document.getElementById("txtPostCode").setAttribute("readonly", "true");
document.getElementById("txtPostalState").setAttribute("readonly", "true");
document.getElementById("txtPostalSuburb").setAttribute("readonly", "true");
document.getElementById("txtPostalCountry").setAttribute("readonly", "true");
copyAddressFields();
}
else {
document.getElementById("txtPostalAddress").removeAttribute("readonly");
document.getElementById("txtPostCode").removeAttribute("readonly")
document.getElementById("txtPostalState").removeAttribute("readonly");
document.getElementById("txtPostalSuburb").removeAttribute("readonly");
document.getElementById("txtPostalCountry").removeAttribute("readonly");
}
}
function copyAddressFields () {
if (chkSynchronizeAddresses.checked){
document.getElementById("txtPostalAddress").value = document.getElementById("txtResidentialAddress").value;
document.getElementById("txtPostCode").value = document.getElementById("txtResiPostCode").value;
document.getElementById("txtPostalSuburb").value = document.getElementById("txtResiSuburb").value;
document.getElementById("txtPostalState").value = document.getElementById("txtResiState").value;
document.getElementById("txtPostalCountry").value = document.getElementById("txtResiCountry").value;
}
}
let idCount = 0
save.onclick = function (){
let fNameValue = fName.value
let lNameValue = lName.value
let bDateValue = birthDate.value
let pCountryValue = document.getElementById("txtPostalCountry").value
let pSuburbValue = document.getElementById("txtPostalSuburb").value
let pStateValue = document.getElementById("txtPostalState").value
let pCodeValue = document.getElementById("txtPostCode").value
let pAddressValue = document.getElementById("txtPostalAddress").value
if (fNameValue === ""){
alert("Please enter your first name to proceed");
return false;
}
else
if (lNameValue === "") {
alert("Please enter your last name to proceed");
return false;
} else if (bDateValue === "") {
alert("Please select a DOB to proceed");
return false;
} else if (pCountryValue === "") {
alert("Please enter your country to continue");
return false;
} else if (pSuburbValue === "") {
alert("Please enter your suburb to continue");
return false;
} else if (pCodeValue === "") {
alert("Please enter your postcode to continue");
return false;
} else if (pAddressValue === "") {
alert("Please enter your Address to continue");
return false;
} else if (pStateValue === "") {
alert("Please enter your state to continue");
return false;
} else {
Member.innerHTML +=
`<option value= >${idCount} ${_frmFull.firstName.value} ${_frmFull.lastName.value}<option>`
idCount++
console.log("check - is increase even working????")
if (Member.options.length == 0){
Delete.disabled = true
}
else {
Delete.disabled = false
}
}
closePopUp();
return true;
}
function closePopUp() {
modal.style.display="none";
}
function openPopUp() {
modal.style.display = "block";
}
Delete.onclick = function removeOption () {
Member.remove(Member.options);
if (Member.options.length == 0) {
Delete.disabled = true
}
else {
Delete.disabled = false
}
console.log("is remove being triggered??")
}
</script>
</body>

so if i understood correctly you want to toggle a button if a is populated
In that case you want to keep track of the options
You can use
document.querySelectoAll('options')
and store it in a variable
then write a function that check if there's a value in that variable and disable or enable the button based on that.
Here's a fiddle:
https://jsfiddle.net/skm7bcr6/15/

Why can't I have two submit buttons serving different functions?

<!DOCTYPE html>
<html lang="en">
<head>
<script src="scripts/apply.js"></script>
<script src="scripts/jobs.js"></script>
<script src="scripts/enhancements.js"></script>
<meta charset="UTF-8">
<title>SwinTech</title>
<link rel="stylesheet" type="text/css" href="css/style.css">
</head>
<body class="applypage">
<header>
<div class="main">
<div class="logo">
<img src="logo.png" alt="logo">
</div>
<ul>
<li>
Home
</li>
<li>
Jobs
</li>
<li class="active">
Apply
</li>
<li>
About
</li>
<li>
Enhancements</li>
</ul>
</div>
</header>
<section class="applything">
<h2> Warning: you have 3 minutes to fill out the form before being redirected back to previous page </h2>
<br>
<h2>Job application:</h2>
<br>
<div class="containerr">
<form action="https://mercury.swin.edu.au/it000000/formtest.php" method="post" id="regform">
<p>Your Name: <span id="job1"></span></p>
<label for="fname">First Name</label>
<input type="text" id="fname" name="firstname" placeholder="Your name.." required="required" maxlength="25" onkeypress="return (event.charCode > 64 && event.charCode < 91) || (event.charCode > 96 && event.charCode < 123) || (event.charCode==32)">
<label for="lname">Last Name</label>
<input type="text" id="lname" name="lastname" placeholder="Your last name.." required="required" onkeypress="return (event.charCode > 64 && event.charCode < 91) || (event.charCode > 96 && event.charCode < 123) || (event.charCode==32)">
<label for="start">Date of birth:</label>
<input type="date" id="start" required="required" name="date of birth" value="2021-10-04" />
<br>
<br>
<label for="gender"> Select you gender</label>
<br>
<br>
<select name="gender" id="gender" required="required">
<option value="" selected>Please Select</option>
<option value="male">Male</option>
<option value="female">Female</option>
</select>
<br>
<label for="streetname">Street Address</label>
<input type="text" id="streetname" name="streetname" required="required" placeholder="Your street name..." maxlength="40" />
<label for="suburb">Suburb/Town</label>
<input type="text" id="suburb" name="suburb" required="required" placeholder="Your suburb/town..." maxlength="40">
<label for="state">Choose a state:</label>
<br>
<select name="state" id="state" required="required">
<option value="">Please Select</option>
<option value="VIC">VIC</option>
<option value="NSW">NSW</option>
<option value="QLD">QLD</option>
<option value="NT">NT</option>
<option value="WA">WA</option>
<option value="SA">SA</option>
<option value="TAS">TAS</option>
<option value="ACT">ACT</option>
</select>
<br>
<br>
<label for="postcode">Postcode</label>
<input type="text" id="postcode" name="postcode" required="required" placeholder="Your postcode..." maxlength="4" minlength="4" pattern="^[0-9]{4}$">
<label for="email">Email Address</label>
<input type="text" id="email" name="emailadd" placeholder="Your email address.." required="required">
<label for="phone">Phone Number</label>
<input type="text" id="phone" name="phonenumb" placeholder="e.g. 0451124561" minlength="8" maxlength="12" required="required">
<br>
<label>Skills</label>
<br>
<br>
<input type="checkbox" id="skill" name="skill1" value="Javascript">
<label for="skill1"> Extensive knowledge of Javascript</label>
<br>
<br>
<input type="checkbox" id="skill" name="skill2" value="Python">
<label for="skill2"> Extensive knowledge of Python</label>
<br>
<br>
<input type="checkbox" id="skill" name="skill3" value="Networking">
<label for="skill3"> Extensive knowledge of Networking</label>
<br>
<br>
<input type="checkbox" id="skill" name="skill4" value="Data Storage">
<label for="skill4"> Extensive knowledge of Data storage fundamentals</label>
<br>
<br>
<input type="checkbox" id="skill" name="skill5" value="Security Foundations">
<label for="skill5"> Extensive knowledge of Security foundations</label>
<br>
<br>
<input type="checkbox" id="skill" name="skill6" value="AWS Service Selection">
<label for="skill6"> Extensive knowledge of AWS service selection</label>
<br>
<br>
<input type="checkbox" id="skill" name="skill7" value="Teamwork">
<label for="skill7"> Ability to work in a team</label>
<br>
<br>
<input type="checkbox" id="skill" name="skill8" value="5+ Years">
<label for="skill8"> 5+ years experience</label>
<br>
<br>
<input type="checkbox" id="skill" name="skill9" value="10+ Years">
<label for="skill9"> 10+ years experience</label>
<br>
<br>
<input type="checkbox" id="skill" name="skill10" value="20+ Years">
<label for="skill10"> 20+ years experience</label>
<br>
<br>
<input
type="checkbox"
id="other"
name="other"
value="other"
onclick="otherCheckBox()"
/>
<label for="other"> I have other skills. Please list other skills below.</label>
<br>
<br>
<br>
<label for="subject">Subject:</label>
<textarea id="otherbox" name="other skill" placeholder="textarea" style="height:200px"></textarea>
<input type="submit" value="Apply">
<br>
<br>
<input type="button" id="cancelpurchase" value="Cancel Application"></input>
</form>
</div>
</section>
<div class="footer">
<div class="footer-content"></div>
<div class="footer-bottom"></div> © swintech.com | Designed by Bilal El-leissy
</div>
</body>
</html>
"use strict"
function otherCheckBox() {
var checkBox = document.getElementById("other"); //Getting the 'other' CheckBox
var otherBox = document.getElementById("otherbox"); //Getting the TextBox
if (checkBox.checked) {
otherBox.required = "true"; //Setting the 'required' parameter to true if checkbox is checked
} else {
otherBox.required = ""; //Setting the 'required' parameter to false if the checkbox is not checked
}
}
function validate() {
var errMsg = "";
var result = true;
var gender = document.getElementById("gender").value;
var start = document.getElementById("start").value;
var skill = document.getElementById("skill").value;
var other = document.getElementById("other").value;
var otherbox = document.getElementById("otherbox").value;
var postcode = document.getElementById("postcode").value;
var state = document.getElementById("state").options[
document.getElementById("state").selectedIndex
].text;
var regex;
//VIC = 3 OR 8, NSW = 1 OR 2 ,QLD = 4 OR 9 ,NT = 0 ,WA = 6 ,SA=5 ,TAS=7 ,ACT= 0.
switch (state) {
case "Please Select":
return false;
case "VIC":
regex = new RegExp(/(3|8)\d+/);
break;
case "NSW":
regex = new RegExp(/(1|2)\d+/);
break;
case "QLD":
regex = new RegExp(/(4|9)\d+/);
break;
case "NT":
regex = new RegExp(/0\d+/);
break;
case "WA":
regex = new RegExp(/6\d+/);
break;
case "SA":
regex = new RegExp(/5\d+/);
break;
case "TAS":
regex = new RegExp(/7\d+/);
break;
case "ACT":
regex = new RegExp(/0\d+/);
break;
}
if (!postcode.match(regex)) {
errMsg = errMsg + "State and postcode do not match\n";
result = false;
}
if (errMsg) {
alert(errMsg);
}
if (result) {
storeBooking(
fname,
lname,
start,
email,
gender,
phone,
streetname,
suburb,
state,
postcode,
other,
otherbox
);
}
return result;
}
function storeBooking(
fname,
lname,
start,
email,
gender,
phone,
streetname,
suburb,
state,
postcode,
skill,
other,
otherbox
) {
sessionStorage.fname = fname;
sessionStorage.lname = lname;
sessionStorage.start = start;
sessionStorage.email = email;
sessionStorage.gender = gender;
sessionStorage.phone = phone;
sessionStorage.streetname = streetname;
sessionStorage.suburb = suburb;
sessionStorage.state = state;
sessionStorage.postcode = postcode;
sessionStorage.skill = skill;
sessionStorage.other = other;
sessionStorage.otherbox = otherbox;
}
function getBooking() {
if (sessionStorage.fname != undefined) {
document.getElementById("confirm_fname").textContent = sessionStorage.fname;
document.getElementById("confirm_lname").textContent = sessionStorage.lname;
document.getElementById("confirm_email").textContent = sessionStorage.email;
document.getElementById("confirm_gender").textContent = sessionStorage.gender;
document.getElementById("confirm_phone").textContent = sessionStorage.phone;
document.getElementById("confirm_start").textContent = sessionStorage.start;
document.getElementById("confirm_streetname").textContent = sessionStorage.streetname;
document.getElementById("confirm_suburb").textContent = sessionStorage.suburb;
document.getElementById("confirm_state").textContent = sessionStorage.state;
document.getElementById("confirm_postcode").textContent = sessionStorage.postcode;
document.getElementById("confirm_skill").textContent = sessionStorage.skill;
document.getElementById("confirm_other").textContent = sessionStorage.other;
document.getElementById("confirm_otherbox").textContent = sessionStorage.otherbox;
document.getElementById("a_fname").value = sessionStorage.fname;
document.getElementById("a_lname").value = sessionStorage.lname;
document.getElementById("a_email").value = sessionStorage.email;
document.getElementById("a_gender").value = sessionStorage.gender;
document.getElementById("a_phone").value = sessionStorage.phone;
document.getElementById("a_start").value = sessionStorage.start;
document.getElementById("a_streetname").value = sessionStorage.streetname;
document.getElementById("a_suburb").value = sessionStorage.suburb;
document.getElementById("a_state").value = sessionStorage.state;
document.getElementById("a_postcode").value = sessionStorage.postcode;
document.getElementById("a_skill").value = sessionStorage.skill;
document.getElementById("a_other").value = sessionStorage.other;
document.getElementById("a_otherbox").value = sessionStorage.otherbox;
}
}
function prefillcard()
{
document.getElementById("fname").value = sessionStorage.fname;
document.getElementById("lname").value = sessionStorage.lname;
document.getElementById("email").value = sessionStorage.email;
document.getElementById("gender").value = sessionStorage.gender;
document.getElementById("phone").value = sessionStorage.phone;
document.getElementById("start").value = sessionStorage.start;
document.getElementById("streetname").value = sessionStorage.streetname;
document.getElementById("suburb").value = sessionStorage.suburb;
document.getElementById("state").value = sessionStorage.state;
document.getElementById("postcode").value = sessionStorage.postcode;
document.getElementById("skill").value = sessionStorage.skill;
document.getElementById("other").value = sessionStorage.other;
document.getElementById("otherbox").value = sessionStorage.otherbox;
}
window.addEventListener("DOMContentLoaded", prefillcard);
function init() {
var regForm = document.getElementById("regform");
regForm.onsubmit = validate;
}
window.onload = function() {
init();
var date = new Date();
var dd = date.getDate();
var mm = date.getMonth() + 1;
var yyyy = date.getFullYear();
//Add a zero if one Digit (eg: 05,09)
if (dd < 10) {
dd = "0" + dd;
}
//Add a zero if one Digit (eg: 05,09)
if (mm < 10) {
mm = "0" + mm;
}
var minYear = yyyy - 80; //Calculate Minimun Age (<80)
var maxYear = yyyy - 15; //Calculate Maximum Age (>18)
var min = minYear + "-" + mm + "-" + dd;
var max = maxYear + "-" + mm + "-" + dd;
document.getElementById("start").setAttribute("min", min);
document.getElementById("start").setAttribute("max", max);
};
(function () { //Enhancement 1
setTimeout(function () {
history.back();
}, 180000);
})();
function cancelBooking(){ //Enhancement 2
window.location = "index.html";
sessionStorage.clear();
}
function init() {
document.getElementById("cancelpurchase").addEventListener("click", cancelBooking);
getBooking();
}
I've set up a form with a submit and cancel button, with the submit button sending all the inputted data to the server and the cancel button sending the user to the homepage. For some reason, only one or the other can be there at the same time and cannot coexist. If my cancel button is activated, I can still submit to the server and cancel the form but all my validation doesn't work. The two separate snippets are in two separate external JavaScript files linked to the same HTML.
Note: no jQuery or Inline JavaScript.

The issue is that both of the buttons have type "submit".
<input type="submit" value="Apply">
<br>
<br>
<input type="submit" id="cancelpurchase" value="Cancel Application"></input>
It causes form to be submitted (and trigger the onsubmit event correspondingly) - and that is default behaviour for any browser.
To resolve the issue - set type="button" for your cancel button.

How do I make error messages show on the webpage? [duplicate]

This question already has answers here:
HTML5 form required attribute. Set custom validation message?
(17 answers)
Closed 1 year ago.
function validate() {
var errMsg = "";
var result = true;
var fname = document.getElementById("fname").value;
if (!fname.match(/^[a-zA-Z]+$/)) {
errMsg += "Please enter your first name correctly.\n";
result = false;
}
var lname = document.getElementById("lname").value;
if (!lname.match(/^[a-zA-Z]+$/)) {
errMsg += "Please enter your last name correctly.\n";
result = false;
}
var email = document.getElementById("email").value;
if (!email.match(/[a-z0-9._%+-]+#[a-z0-9.-]+\.[a-z]{2,}$/)) {
errMsg += "Please enter your email correctly.\n";
result = false;
}
var streetname = document.getElementById("streetname").value;
if (!streetname.match(/^[a-zA-Z0-9\s]+$/)) {
errMsg += "Please enter your street name correctly.\n";
result = false;
}
var suburb = document.getElementById("suburb").value;
if (!suburb.match(/^[a-zA-Z\-]+$/)) {
errMsg += "Please enter your suburb correctly.\n";
result = false;
}
var phone = document.getElementById("phone").value;
if (!phone.match(/[0-9]{9}/)) {
errMsg += "Please enter your phone number correctly.\n";
result = false;
}
var gender = document.getElementById("gender").value;
var start = document.getElementById("start").value;
var skill = document.getElementById("skill").value;
var other = document.getElementById("other").value;
var otherbox = document.getElementById("otherbox").value;
var postcode = document.getElementById("postcode").value;
var state = document.getElementById("state").options[
document.getElementById("state").selectedIndex
].text;
var regex;
//VIC = 3 OR 8, NSW = 1 OR 2 ,QLD = 4 OR 9 ,NT = 0 ,WA = 6 ,SA=5 ,TAS=7 ,ACT= 0.
switch (state) {
case "Please Select":
return false;
case "VIC":
regex = new RegExp(/(3|8)\d+/);
break;
case "NSW":
regex = new RegExp(/(1|2)\d+/);
break;
case "QLD":
regex = new RegExp(/(4|9)\d+/);
break;
case "NT":
regex = new RegExp(/0\d+/);
break;
case "WA":
regex = new RegExp(/6\d+/);
break;
case "SA":
regex = new RegExp(/5\d+/);
break;
case "TAS":
regex = new RegExp(/7\d+/);
break;
case "ACT":
regex = new RegExp(/0\d+/);
break;
}
if (!postcode.match(regex)) {
errMsg = errMsg + "State and postcode do not match\n";
result = false;
}
if (errMsg) {
alert(errMsg);
}
if (result) {
storeBooking(
fname,
lname,
start,
email,
gender,
phone,
streetname,
suburb,
state,
postcode,
other,
otherbox
);
}
return result;
}
<form action="https://mercury.swin.edu.au/it000000/formtest.php" method="post" id="regform">
<p>Your Name: <span id="job1"></span></p>
<label for="fname">First Name</label>
<input type="text" id="fname" name="firstname" placeholder="Your name.." required="required" maxlength="25" onkeypress="return (event.charCode > 64 && event.charCode < 91) || (event.charCode > 96 && event.charCode < 123) || (event.charCode==32)">
<label for="lname">Last Name</label>
<input type="text" id="lname" name="lastname" placeholder="Your last name.." required="required" onkeypress="return (event.charCode > 64 && event.charCode < 91) || (event.charCode > 96 && event.charCode < 123) || (event.charCode==32)">
<label for="start">Date of birth:</label>
<input type="date" id="start" required="required" name="date of birth" value="2021-10-04" />
<br>
<br>
<label for="gender"> Select you gender</label>
<br>
<br>
<select name="gender" id="gender" required="required">
<option value="" selected>Please Select</option>
<option value="male">Male</option>
<option value="female">Female</option>
</select>
<br>
<label for="streetname">Street Address</label>
<input type="text" id="streetname" name="streetname" required="required" placeholder="Your street name..." maxlength="40" />
<label for="suburb">Suburb/Town</label>
<input type="text" id="suburb" name="suburb" required="required" placeholder="Your suburb/town..." maxlength="40">
<label for="state">Choose a state:</label>
<br>
<select name="state" id="state" required="required">
<option value="">Please Select</option>
<option value="VIC">VIC</option>
<option value="NSW">NSW</option>
<option value="QLD">QLD</option>
<option value="NT">NT</option>
<option value="WA">WA</option>
<option value="SA">SA</option>
<option value="TAS">TAS</option>
<option value="ACT">ACT</option>
</select>
<br>
<br>
<label for="postcode">Postcode</label>
<input type="text" id="postcode" name="postcode" required="required" placeholder="Your postcode..." maxlength="4" minlength="4" pattern="^[0-9]{4}$">
<label for="email">Email Address</label>
<input type="text" id="email" name="emailadd" placeholder="Your email address.." required="required">
<label for="phone">Phone Number</label>
<input type="text" id="phone" name="phonenumb" placeholder="e.g. 0451124561" minlength="8" maxlength="12" required="required">
<br>
<input type="submit" value="Apply">
<br>
<br>
<input type="submit" id="cancelpurchase" value="Cancel Application"></input>
</form>
How do I make it so that the error message shows up on the actual webpage, rather than an alert box, next to the input? I can't seem to find anything online about changing the default way an error message shows up. If you need less/more information, please suggest that to me.
Note: no jQuery or inline JavaScript.

You can make a <div id="popup"> Error message </div> with display: none and position: fixed and instead of alertion make this div visible document.querySelector('#popup').style.display = 'block' and a close button in it to close this popup

You appear to be showing the error message with the following code:
if (errMsg) {
alert(errMsg);
}
If you instead get a reference to an element,
e.g
var tgtElem = document.getElementById(textStringIdGoesHere);
You can then display the message by setting its textContent,
e.g
tgtElem.textContent = errMsg;

Why does my JavaScript file crash without any apparent errors?

function validate() {
var errMsg = "";
var result = true;
var fname = document.getElementById("fname").value;
if (!fname.match(/^[a-zA-Z]+$/)) {
errMsg += "Please enter your first name correctly.\n";
result = false;
}
var lname = document.getElementById("lname").value;
if (!lname.match(/^[a-zA-Z]+$/)) {
errMsg += "Please enter your last name correctly.\n";
result = false;
}
var email = document.getElementById("email").value;
if (!email.match(/[a-z0-9._%+-]+#[a-z0-9.-]+\.[a-z]{2,}$/)) {
errMsg += "Please enter your email correctly.\n";
result = false;
}
var streetname = document.getElementById("streetname").value;
if (!streetname.match(/^[a-zA-Z0-9\s]+$/)) {
errMsg += "Please enter your street name correctly.\n";
result = false;
}
var suburb = document.getElementById("suburb").value;
if (!suburb.match(/^[a-zA-Z\-]+$/)) {
errMsg += "Please enter your suburb correctly.\n";
result = false;
}
var phone = document.getElementById("phone").value;
if (!phone.match(/[0-9]{9}/)) {
errMsg += "Please enter your phone number correctly.\n";
result = false;
}
var postcode = document.getElementById("postcode").value;
var state = document.getElementById("state").options[
document.getElementById("state").selectedIndex
].text;
var regex;
//VIC = 3 OR 8, NSW = 1 OR 2 ,QLD = 4 OR 9 ,NT = 0 ,WA = 6 ,SA=5 ,TAS=7 ,ACT= 0.
switch (state) {
case "Please Select":
return false;
case "VIC":
regex = new RegExp(/(3|8)\d+/);
break;
case "NSW":
regex = new RegExp(/(1|2)\d+/);
break;
case "QLD":
regex = new RegExp(/(4|9)\d+/);
break;
case "NT":
regex = new RegExp(/0\d+/);
break;
case "WA":
regex = new RegExp(/6\d+/);
break;
case "SA":
regex = new RegExp(/5\d+/);
break;
case "TAS":
regex = new RegExp(/7\d+/);
break;
case "ACT":
regex = new RegExp(/0\d+/);
break;
}
if (!postcode.match(regex)) {
errMsg = errMsg + "State and postcode do not match\n";
result = false;
}
if (errMsg) {
alert(errMsg);
}
if (result) {
storeBooking(
fname,
lname,
email,
phone,
streetname,
suburb,
state,
postcode
);
}
return result;
}
function storeBooking(
fname,
lname,
email,
phone,
streetname,
suburb,
state,
postcode
) {
sessionStorage.fname = fname;
sessionStorage.lname = lname;
sessionStorage.email = email;
sessionStorage.phone = phone;
sessionStorage.streetname = streetname;
sessionStorage.suburb = suburb;
sessionStorage.state = state;
sessionStorage.postcode = postcode;
}
function init() {
var regForm = document.getElementById("regform");
regForm.onsubmit = validate;
}
window.onload = init;
window.onload = function() {
var date = new Date();
var dd = date.getDate();
var mm = date.getMonth() + 1;
var yyyy = date.getFullYear();
//Add a zero if one Digit (eg: 05,09)
if (dd < 10) {
dd = "0" + dd;
}
//Add a zero if one Digit (eg: 05,09)
if (mm < 10) {
mm = "0" + mm;
}
minYear = yyyy - 80; //Calculate Minimun Age (<80)
maxYear = yyyy - 15; //Calculate Maximum Age (>18)
var min = minYear + "-" + mm + "-" + dd;
var max = maxYear + "-" + mm + "-" + dd;
document.getElementById("start").setAttribute("min", min);
document.getElementById("start").setAttribute("max", max);
};
<!DOCTYPE html>
<html lang="en">
<head>
<script src="scripts/part2.js"></script>
<meta charset="UTF-8">
<title>SwinTech</title>
<link rel="stylesheet" type="text/css" href="css/style.css">
</head>
<body class="applypage">
<header>
<div class="main">
<div class="logo">
<img src="logo.png" alt="logo">
</div>
<ul>
<li>
Home
</li>
<li>
Jobs
</li>
<li class="active">
Apply
</li>
<li>
About
</li>
</ul>
</div>
</header>
<section class="applything"><h2>Job application:</h2>
<br>
<div class="containerr">
<form action="https://mercury.swin.edu.au/it000000/formtest.php" method="post" id="regform">
<label>Job Reference Number</label>
<input type="text" id="onlyletters" name="onlyletters" pattern="[a-zA-Z0-9]+" minlength="5" maxlength="5" placeholder="Reference number for specified job.." required="required">
<label for="fname">First Name</label>
<input type="text" id="fname" name="firstname" placeholder="Your name.." required="required" maxlength="25" onkeypress="return (event.charCode > 64 && event.charCode < 91) || (event.charCode > 96 && event.charCode < 123) || (event.charCode==32)">
<label for="lname">Last Name</label>
<input type="text" id="lname" name="lastname" placeholder="Your last name.." required="required" onkeypress="return (event.charCode > 64 && event.charCode < 91) || (event.charCode > 96 && event.charCode < 123) || (event.charCode==32)">
<label for="start">Date of birth:</label>
<input type="date" id="start" required="required" name="trip-start" value="2021-10-02" />
<br>
<br>
<label for="gender"> Select you gender</label>
<br>
<br>
<select name="gender" id="gender" required="required">
<option value="" selected>Please Select</option>
<option value="male">Male</option>
<option value="female">Female</option>
</select>
<br>
<label for="streetname">Street Address</label>
<input type="text" id="streetname" name="streetname" required="required" placeholder="Your street name..." maxlength="40" />
<label for="suburb">Suburb/Town</label>
<input type="text" id="suburb" name="suburb" required="required" placeholder="Your suburb/town..." maxlength="40">
<label for="state">Choose a state:</label>
<br>
<select name="state" id="state" required="required">
<option value="">Please Select</option>
<option value="VIC">VIC</option>
<option value="NSW">NSW</option>
<option value="QLD">QLD</option>
<option value="NT">NT</option>
<option value="WA">WA</option>
<option value="SA">SA</option>
<option value="TAS">TAS</option>
<option value="ACT">ACT</option>
</select>
<br>
<br>
<label for="postcode">Postcode</label>
<input type="text" id="postcode" name="postcode" required="required" placeholder="Your postcode..." maxlength="4" minlength="4" pattern="^[0-9]{4}$">
<label for="email">Email Address</label>
<input type="text" id="email" name="emailadd" placeholder="Your email address.." required="required">
<label for="phone">Phone Number</label>
<input type="text" id="phone" name="phonenumb" placeholder="e.g. 0451124561" minlength="8" maxlength="12" required="required">
<br>
<label>Skills</label>
<br>
<br>
<input type="checkbox" id="skill1" name="skill1" value="Javascript">
<label for="skill1"> Extensive knowledge of Javascript</label>
<br>
<br>
<input type="checkbox" id="skill2" name="skill2" value="Python">
<label for="skill2"> Extensive knowledge of Python</label>
<br>
<br>
<input type="checkbox" id="skill3" name="skill3" value="C#">
<label for="skill3"> Extensive knowledge of Networking</label>
<br>
<br>
<input type="checkbox" id="skill4" name="skill4" value="C#">
<label for="skill4"> Extensive knowledge of Data storage fundamentals</label>
<br>
<br>
<input type="checkbox" id="skill5" name="skill5" value="C#">
<label for="skill5"> Extensive knowledge of Security foundations</label>
<br>
<br>
<input type="checkbox" id="skill6" name="skill6" value="C#">
<label for="skill6"> Extensive knowledge of AWS service selection</label>
<br>
<br>
<input type="checkbox" id="skill7" name="skill7" value="C#">
<label for="skill7"> Ability to work in a team</label>
<br>
<br>
<input type="checkbox" id="skill8" name="skill8" value="C#">
<label for="skill8"> 5+ years experience</label>
<br>
<br>
<input type="checkbox" id="skill9" name="skill9" value="C#">
<label for="skill9"> 10+ years experience</label>
<br>
<br>
<input type="checkbox" id="skill10" name="skill10" value="C#">
<label for="skill10"> 20+ years experience</label>
<br>
<br>
<input
type="checkbox"
id="other"
name="other"
value="other"
onclick="otherCheckBox()"
/>
<label for="other"> I have other skills. Please list other skills below.</label>
<br>
<br>
<br>
<label for="subject">Subject:</label>
<textarea id="otherbox" name="subject" placeholder="textarea" style="height:200px"></textarea>
<input type="submit" value="Apply">
</form>
</div>
</section>
<div class="footer">
<div class="footer-content"></div>
<div class="footer-bottom"></div> © swintech.com | Designed by Bilal El-leissy
</div>
</body>
</html>
My JavaScript crashes even though there are no apparent errors when I check the console on Chrome. I've tried rearranging and removing certain functions from the JavaScript but there doesn't seem to be a particular pattern so I cannot determine which piece of code is crashing the rest of it.
What specifically happens is that all my validation stops working except my date of birth validation.
Note: Cannot use inline JavaScript or jQuery.

Thank You for clarifying.
The problem is with init() method.
function init() {
var regForm = document.getElementById("regform");
regForm.onsubmit = validate;
}
window.onload = init;
window.onload = function() {
var date = new Date();
var dd = date.getDate();
In this piece of code window.onload = init; You assign init function to window.onload and after that immediately reassign window.onload with function() {..}
So Your init() function is never called.
Try to move init function call like this:
window.onload = function() {
init();
var date = new Date();
var dd = date.getDate();
var mm = date.getMonth() + 1;
... }

Why doesn't Javascript validate my html code?

This is my first attempt at working with javascript and forms; for some reason my html website elements aren't being validated and I am not sure why. My goal with this form is trying to validate the elements that have an '*' next to them. For some reason the only element that is being validated is email and nothing else. Name, dates, the checkbox aren't. I have been trying to find a fix, but nothing seems to work.
<!doctype html>
<html>
<head>
<link href="styles.css" rel="stylesheet">
<script src="script.js"></script>
<meta charset="utf-8">
<title>Form</title>
</head>
<body>
<div class="container">
<h1>Travel Reservation Form</h1>
<h4>* denotes mandotory field</h4>
<form name="myForm" action="action_page.php" onsubmit="return validateForm()" method="post">
<fieldset>
<legend>Personal Details</legend>
<label class="align">Full name:<span>*</span></label> <input type="text" name="fullname" placeholder="James Bond">
<br><br>
<label class="align">Email<span>*</span></label>
<input type="email" name="mail" placeholder="james#gmail.com">
<br><br>
<label class="align">Date of Birth<span>*</span></label> <input type="date" name="DOB" placeholder="dd/mm/yy">
</fieldset>
<br>
<label>Select Tour Package<span>*</span>:</label>
<select name="package">
<option value="1">Tokyo</option>
<option value="2">Shanghai</option>
<option value="3">Bangkok</option>
<option value="4">Jakarta</option>
<option value="5">Mumbai</option>
</select>
<label>Number of persons<span>*</span>:</label>
<select name="party">
<option value="1">One Adult</option>
<option value="2">Two Adults</option>
<option value="3">Three Adults</option>
<option value="4">Four Adults</option>
<option value="5">Five Adults</option>
</select>
<br><br>
<label>Arrival Date<span>*</span>:</label> <input type="date" name="arrival" placeholder="dd/mm/yy">
<br><br>
<p>What Intrests you the most?<span>*</span>:</p>
<input class="alignp" type="checkbox" name="interest" value="shopping"> Shopping <br><br>
<input class="alignp" type="checkbox" name="interest" value="dining"> Dining <br><br>
<input class="alignp" type="checkbox" name="interest" value="dancing"> Dancing <br><br>
<input class="alignp" type="checkbox" name="interest" value="SightS"> Sightseeing <br><br><br>
<label>Discount Coupon code:</label> <input type="text" name="dis_code" value=""><br><br>
<label>Terms and Conditions<span>*</span><input type="radio" name="tos" value="yes" checked>I agree</label>
<input type="radio" name="tos" value="yes">I disagree
<p>Please provide any additional information below:- </p>
<textarea name="message" rows="5" cols="45" placeholder="Please type here...."></textarea><br><br>
<button class="btn-submit" type="submit" value="Submit">Submit</button>
<button class="btn-reset" type="reset" value="Reset">Reset</button>
</form>
</div>
</body>
</html>
Here is the javascript that is being linked in the html. I am unsure whether the issue is with my html code or with my javascript.
// JavaScript Document
function validateForm()
{
var name = document.forms["myForm"]["name"].value;
var email = document.forms["myForm"]["email"].value;
var dob = document.forms["myForm"]["DOB"].value;
var packages = document.forms["myForm"]["package"].value;
var arrival = document.forms["myForm"]["arrival"].value;
//var interest = document.forms["form"]["interest"].value;
var ToS = document.forms["myForm"]["tos"].value;
var checkbox = document.querySelector('input[name="interest"]:checked');
var matches = name.match(/\d+/g);
if (matches != null) {
alert("Name has a number in it!");
}
if (name == "") {
alert("Name must be filled out");
return false;
}
if (email == "") {
alert("Email must be filled out");
return false;
}
if (dob == "") {
alert("Date of Birth must not be empty");
return false;
}
if (arrival == "") {
alert("Arrival Date must not be empty");
return false;
}
if(ToS == false) {
alert("You must agree to the Terms of Service");
return false;
}
if(validateEmail(email) == false){
alert("Must enter a valid email");
}
re = /^\d{1,2}\/\d{1,2}\/\d{4}$/;
if(dob != '' && !dob.match(re)) {
alert("Invalid date format");
return false;
}
if(arrival != '' && !arrival.match(re)) {
alert("Invalid arrival date format") ;
return false;
}
if(name.length >= 30){
alert("Name must be less than 30 characters!");
return false;
}
if(!checkbox){
alert("Please select an interest!");
return false;
}
}
function validateEmail(email)
{
return /\S+#\S+\.\S+/.test(email);
}

So I have no idea what your PHP form did, so I actually just pulled all the form code for now. There were a lot of little issues but honest mistakes. Example: you don't want a return statement after every validation if you want to continue validating the rest of the fields. I combined some separate validations into if/else's since they were validations on the same field. I used ID's to make my life easier and since I dumped the form code. Feel free to swap back to what you want. I also updated your regex since the date field returns YYYY/MM/DD. Since this doesn't post anywhere you can play with it for a while, before tying back into your php form. I also pulled the check for 30 characters and added a max field length to name. You could also set min and max date ranges for the date fields and a bunch of other things to help make the fields themselves more foolproof. There are also libraries that handle this kind of thing for you, you don't have to re-invent the wheel, but if you're just looking to play around with it this should get you started. Good Luck
<!doctype html>
<html>
<body>
<div class="container">
<h1>Travel Reservation Form</h1>
<h4>* denotes mandotory field</h4>
<fieldset>
<legend>Personal Details</legend>
<label class="align">Full name:<span>*</span></label> <input type="text" name="fullname" id='name' maxlength="30" placeholder="James Bond">
<br><br>
<label class="align">Email<span>*</span></label>
<input id="email" type="email" name="mail" placeholder="james#gmail.com">
<br><br>
<label class="align">Date of Birth<span>*</span></label> <input type="date" id="dob" name="DOB" placeholder="dd/mm/yy">
</fieldset>
<br>
<label>Select Tour Package<span>*</span>:</label>
<select id='package' name="package">
<option value="1">Tokyo</option>
<option value="2">Shanghai</option>
<option value="3">Bangkok</option>
<option value="4">Jakarta</option>
<option value="5">Mumbai</option>
</select>
<label>Number of persons<span>*</span>:</label>
<select name="party">
<option value="1">One Adult</option>
<option value="2">Two Adults</option>
<option value="3">Three Adults</option>
<option value="4">Four Adults</option>
<option value="5">Five Adults</option>
</select>
<br><br>
<label>Arrival Date<span>*</span>:</label> <input type="date" name="arrival" id="arrival" placeholder="dd/mm/yy">
<br><br>
<p>What Intrests you the most?<span>*</span>:</p>
<input class="alignp" type="checkbox" name="interest" value="shopping"> Shopping <br><br>
<input class="alignp" type="checkbox" name="interest" value="dining"> Dining <br><br>
<input class="alignp" type="checkbox" name="interest" value="dancing"> Dancing <br><br>
<input class="alignp" type="checkbox" name="interest" value="SightS"> Sightseeing <br><br><br>
<label>Discount Coupon code:</label> <input type="text" name="dis_code" value=""><br><br>
<label>Terms and Conditions<span>*</span>
<input type="radio" name="tos" id="accpeted" value="agree" checked>I agree</label>
<input type="radio" name="tos" id="unaccepted" value="disagree">I disagree
<p>Please provide any additional information below:- </p>
<textarea name="message" rows="5" cols="45" placeholder="Please type here...."></textarea><br><br>
<button class="btn-submit" id="submit" onclick="return validateForm()">Submit</button>
</div>
<script>
// JavaScript Document
function validateForm() {
var name = document.getElementById("name").value;
var email = document.getElementById("email").value;
var dob = document.getElementById("dob").value;
//Select Box
var e = document.getElementById("package");
// Selected Item
var packages = e.options[e.selectedIndex].value;
var arrival = document.getElementById("arrival").value;
//var interest = document.getElementById("").value;
var tos = document.querySelector('input[name="tos"]:checked').value;
//var checkbox = document.getElementById("").value;;
var matches = name.match(/\d+/g);
var re = /^\d{4}([.\/-])\d{2}\1\d{2}$/;
if (!name) {
alert("Name must be filled out");
} else {
if (matches != null) {
alert("Name has a number in it!: " + name);
}
}
if (!email) {
alert("Email must be filled out");
} else {
if (validateEmail(email) == false) {
alert("Must enter a valid email: " + email);
}
}
if (!dob) {
alert("Date of Birth must not be empty");
} else {
if (!dob.match(re)) {
alert(" Dob has Invalid date format: " + dob);
}
}
if (!arrival) {
alert("Arrival Date must not be empty");
} else {
if (!arrival.match(re)) {
alert(" Dob has Invalid date format: " + arrival);
}
}
if (tos != "agree") {
alert("You must agree to the Terms of Service");
}
}
function validateEmail(email) {
return /\S+#\S+\.\S+/.test(email);
}
</script>
</body>
</html>