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<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<style>
.mySlides {display:none;}
</style>


<div class="w3-container">
<div class="w3-container">
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   <p>An example of using buttons to indicate how many slides there are in the slideshow, and which slide the user is currently viewing.</p>
   <p>An example of using buttons to indicate how many slides there are in the slideshow, and which slide the user is currently viewing.</p>
</div>
</div>





Revision as of 23:06, 21 July 2017

<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">

<style> .mySlides {display:none;} </style>

Slideshow Indicators

An example of using buttons to indicate how many slides there are in the slideshow, and which slide the user is currently viewing.


   <button class="w3-button w3-light-grey" onclick="plusDivs(-1)">❮ Prev</button>
   <button class="w3-button w3-light-grey" onclick="plusDivs(1)">Next ❯</button>
 <button class="w3-button demo" onclick="currentDiv(1)">1</button> 
 <button class="w3-button demo" onclick="currentDiv(2)">2</button> 
 <button class="w3-button demo" onclick="currentDiv(3)">3</button> 

<script> var slideIndex = 1; showDivs(slideIndex);

function plusDivs(n) {

 showDivs(slideIndex += n);

}

function currentDiv(n) {

 showDivs(slideIndex = n);

}

function showDivs(n) {

 var i;
 var x = document.getElementsByClassName("mySlides");
 var dots = document.getElementsByClassName("demo");
 if (n > x.length) {slideIndex = 1}    
 if (n < 1) {slideIndex = x.length}
 for (i = 0; i < x.length; i++) {
    x[i].style.display = "none";  
 }
 for (i = 0; i < dots.length; i++) {
    dots[i].className = dots[i].className.replace(" w3-red", "");
 }
 x[slideIndex-1].style.display = "block";  
 dots[slideIndex-1].className += " w3-red";

} </script>