I would like to add two buttons onto my navigation slider so that I can go back and forth. What is the most suitable and simplistic way of doing this? Will appreciate any answers provided.
Here is my code
<!DOCTYPE html>
<html>
<head>
<meta content="text/html; charset=iso-8859-1" http-equiv="Content-Type"/>
<title></title>
<link rel="stylesheet" href="stylesheet.css" type="text/css" media="all" />
<script type="text/javascript" src="jquery/jquery-1.2.6.min.js"></script>
<script src="jquery/slider.js"></script>
</head>
<body style="font-family: Arial, Sans-serif, sans;">
<h1>Slideshow</h1>
<div id="slideshow">
<img src="image1.jpg" alt="Slideshow Image 1" class="active" />
<img src="image2.jpg" alt="Slideshow Image 2" />
<img src="image3.jpg" alt="Slideshow Image 3" />
<img src="image4.jpg" alt="Slideshow Image 4" />
</div>
</body>
</html>
css
#slideshow {
position:relative;
height:350px;
}
#slideshow IMG {
position:absolute;
top:0;
left:0;
z-index:8;
opacity:0.0;
}
#slideshow IMG.active {
z-index:10;
opacity:1.0;
}
#slideshow IMG.last-active {
z-index:9;
}
Jquery
function slideSwitch() {
var $active = $('#slideshow IMG.active');
if ( $active.length == 0 ) $active = $('#slideshow IMG:last');
$next = $active.next().length ? $active.next()
: $('#slideshow IMG:first');
$active.addClass('last-active');
$next.css({opacity: 0.0})
.addClass('active')
.animate({opacity: 1.0}, 1000, function() {
$active.removeClass('active last-active');
});
}
$(function() {
setInterval( "slideSwitch()", 5000 );
});
The forward navigation is already there, you can use it like:
<a href="#" onclick="slideSwitch();return false;">next</a>
The back button is the reverse of the slideSwitch() function:
function slideSwitchBack() {
var $active = $('#slideshow IMG.active');
if ( $active.length == 0 ) $active = $('#slideshow IMG:first');
var $prev = $active.prev().length ? $active.prev() : $('#slideshow IMG:last');
$active.addClass('last-active');
$prev.css({opacity: 0.0})
.addClass('active')
.animate({opacity: 1.0}, 1000, function() {
$active.removeClass('active last-active');
});
}
See demo at http://jsfiddle.net/zuY5H/
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