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<h1 class="bg-info text-white text-center p-2 fixed-top">Bootstrap 4 Multi-step form</h1>
<main class="content" role="content">
<section id="section1">
<div class="container-fluid col-md-6 col-md-offset-3">
<!-- MultiStep Form -->
<form id="regForm" action="/submit_page.php">
<h1>Register:</h1>
<!-- One "tab" for each step in the form: -->
<div class="tab">Name:
<p><input placeholder="First name..." oninput="this.className = ''" name="fname"></p>
<p><input placeholder="Last name..." oninput="this.className = ''" name="lname"></p>
</div>
<div class="tab">Contact Info:
<p><input placeholder="E-mail..." oninput="this.className = ''" name="email"></p>
<p><input placeholder="Phone..." oninput="this.className = ''" name="phone"></p>
</div>
<div class="tab">Birthday:
<p><input placeholder="dd" oninput="this.className = ''" name="dd"></p>
<p><input placeholder="mm" oninput="this.className = ''" name="nn"></p>
<p><input placeholder="yyyy" oninput="this.className = ''" name="yyyy"></p>
</div>
<div class="tab">Login Info:
<p><input placeholder="Username..." oninput="this.className = ''" name="uname"></p>
<p><input placeholder="Password..." oninput="this.className = ''" name="pword" type="password"></p>
</div>
<div style="overflow:auto;">
<div style="float:right;">
<button type="button" id="prevBtn" onclick="nextPrev(-1)">Previous</button>
<button type="button" id="nextBtn" onclick="nextPrev(1)">Next</button>
</div>
</div>
<!-- Circles which indicates the steps of the form: -->
<div style="text-align:center;margin-top:40px;">
<span class="step"></span>
<span class="step"></span>
<span class="step"></span>
<span class="step"></span>
</div>
</form>
<!-- /.MultiStep Form -->
</div>
</section>
</main> <!-- /content -->
<!-- alerts are for fun of it -->
<div class="alerts-container">
<div class="row">
<div id="timed-alert" class="alert alert-info animated tada" role="alert">
<span id="time"></span>
</div>
</div>
<div class="row">
<div id="click-alert" class="alert alert-warning" role="alert">
</div>
</div>
</div>
/*custom font*/
@import url(import url here);
body {
/*font: normal 1em 'font';*/
background-color: #ecfab6;
}
main {
/* margin-top: 4.5em; */
}
#section1 {
height: 30em;
}
/* Multi-Step Form */
* {
box-sizing: border-box;
}
#regForm {
background-color: #fff;
margin: 100px auto;
font-family: Raleway;
padding: 40px;
width: 100%;
min-width: 600px;
}
h1 {
text-align: center;
}
input {
padding: 10px;
width: 100%;
font-size: 17px;
font-family: Raleway;
border: 1px solid #aaaaaa;
}
/* Mark input boxes that get errors during validation: */
input.invalid {
background-color: #ffdddd;
}
/* Hide all steps by default: */
.tab {
display: none;
}
button {
background-color: #4CAF50;
color: #ffffff;
border: none;
padding: 10px 20px;
font-size: 17px;
font-family: Raleway;
cursor: pointer;
}
button:hover {
opacity: 0.8;
}
#prevBtn {
background-color: #bbbbbb;
}
/* Step marker: Place in the form. */
.step {
height: 15px;
width: 15px;
margin: 0 2px;
background-color: #bbbbbb;
border: none;
border-radius: 50%;
display: inline-block;
opacity: 0.5;
}
.step.active {
opacity: 1;
}
/* Mark the steps that are finished and valid: */
.step.finish {
background-color: #4CAF50;
}
$(document).ready(function() {
// Random Alert shown for the fun of it
function randomAlert() {
var min = 5,
max = 20;
var rand = Math.floor(Math.random() * (max - min + 1) + min); //Generate Random number between 5 - 20
// post time in a <span> tag in the Alert
$("#time").html('Next alert in ' + rand + ' seconds');
$('#timed-alert').fadeIn(500).delay(3000).fadeOut(500);
setTimeout(randomAlert, rand * 1000);
};
randomAlert();
});
$('.btn').click(function(event) {
event.preventDefault();
var target = $(this).data('target');
// console.log('#'+target);
$('#click-alert').html('data-target= ' + target).fadeIn(50).delay(3000).fadeOut(1000);
});
// Multi-Step Form
var currentTab = 0; // Current tab is set to be the first tab (0)
showTab(currentTab); // Display the crurrent tab
function showTab(n) {
// This function will display the specified tab of the form...
var x = document.getElementsByClassName("tab");
x[n].style.display = "block";
//... and fix the Previous/Next buttons:
if (n == 0) {
document.getElementById("prevBtn").style.display = "none";
} else {
document.getElementById("prevBtn").style.display = "inline";
}
if (n == (x.length - 1)) {
document.getElementById("nextBtn").innerHTML = "Submit";
} else {
document.getElementById("nextBtn").innerHTML = "Next";
}
//... and run a function that will display the correct step indicator:
fixStepIndicator(n)
}
function nextPrev(n) {
// This function will figure out which tab to display
var x = document.getElementsByClassName("tab");
// Exit the function if any field in the current tab is invalid:
if (n == 1 && !validateForm()) return false;
// Hide the current tab:
x[currentTab].style.display = "none";
// Increase or decrease the current tab by 1:
currentTab = currentTab + n;
// if you have reached the end of the form...
if (currentTab >= x.length) {
// ... the form gets submitted:
document.getElementById("regForm").submit();
return false;
}
// Otherwise, display the correct tab:
showTab(currentTab);
}
function validateForm() {
// This function deals with validation of the form fields
var x, y, i, valid = true;
x = document.getElementsByClassName("tab");
y = x[currentTab].getElementsByTagName("input");
// A loop that checks every input field in the current tab:
for (i = 0; i < y.length; i++) {
// If a field is empty...
if (y[i].value == "") {
// add an "invalid" class to the field:
y[i].className += " invalid";
// and set the current valid status to false
valid = false;
}
}
// If the valid status is true, mark the step as finished and valid:
if (valid) {
document.getElementsByClassName("step")[currentTab].className += " finish";
}
return valid; // return the valid status
}
function fixStepIndicator(n) {
// This function removes the "active" class of all steps...
var i, x = document.getElementsByClassName("step");
for (i = 0; i < x.length; i++) {
x[i].className = x[i].className.replace(" active", "");
}
//... and adds the "active" class on the current step:
x[n].className += " active";
}
Also see: Tab Triggers