jQuery Forum

Hello guys,
I'm trying to make some changes to the "coda slider" created by Remy
at jqueryfordesigner.com but I have hard time so figure out that is
wrong with my code. I hope someone can help me out with this issue.
I want to change dynamically the left and right buttons according to
the current panel. (something like they guys at macheist.com have done
for their 3rd bundle website)
Here my HTML:
<div id="slider">
    <div id="left_scroller"></div>
<ul class="navigation">
<li><a href="#first" id="1">Server Side</a></li>
<li><a href="#second" id="2">Client Side</a></li>
<li><a href="#third" id="3">Mobile</a></li>
</ul>
<div class="scroll">
<div class="scrollContainer">
<div class="panel" id="first">lorem ...</div>
<div class="panel" id="second">lorem ...</div>
<div class="panel" id="third">lorem ...</div>
</div>
</div>
<div id="right_scroller"></div>
</div>
Here my JS:
// when the DOM is ready...
$(document).ready(function () {
var $panels = $('#slider .scrollContainer > div');
var $container = $('#slider .scrollContainer');
// if false, we'll float all the panels left and fix the width
// of the container
var horizontal = true;
// float the panels left if we're going horizontal
if (horizontal) {
$panels.css({
'float' : 'left',
'position' : 'relative' // IE fix to ensure overflow is
hidden
});
// calculate a new width for the container (so it holds all
panels)
$container.css('width', $panels[0].offsetWidth *
$panels.length);
}
// collect the scroll object, at the same time apply the hidden
overflow
// to remove the default scrollbars that will appear
var $scroll = $('#slider .scroll').css('overflow', 'hidden');
// handle nav selection
function selectNav() {
$(this)
.parents('ul:first')
.find('a')
.removeClass('selected')
.end()
.end()
.addClass('selected');
    }
// handle buttons
    function updateButtons() {
     //$(this)
            //apply our left + right buttons
            // images have to be 0 to n-1 where n is number of panels
            var left_index = (parseInt(this.id) - 1) % $('#slider .navigation
li').length;
            var right_index = (parseInt(this.id) + 1) % $('#slider .navigation
li').length;
            $('#left_scroller').html('<img class="scrollButtons left"
src="images/'+left_index+'.png" />');
            $('#right_scroller').html('<img class="scrollButtons right"
src="images/'+right_index+'.png" />');
}
$('#slider .navigation').find('a').click(selectNav);
$('#slider .navigation').find('a').click(updateButtons);
// go find the navigation link that has this target and select the
nav
function trigger(data) {
var el = $('#slider .navigation').find('a[href$="' + data.id +
'"]').get(0);
selectNav.call(el);
updateButtons.call(el);
}
if (window.location.hash) {
trigger({ id : window.location.hash.substr(1) });
} else {
$('ul.navigation a:first').click();
}
// offset is used to move to *exactly* the right place, since I'm
using
// padding on my example, I need to subtract the amount of padding
to
// the offset. Try removing this to get a good idea of the effect
var offset = parseInt((horizontal ?
$container.css('paddingTop') :
$container.css('paddingLeft'))
|| 0) * -1;
var scrollOptions = {
target: $scroll, // the element that has the overflow
// can be a selector which will be relative to the target
items: $panels,
navigation: '.navigation a',
// selectors are NOT relative to document, i.e. make sure
they're unique
prev: 'img.left',
next: 'img.right',
// allow the scroll effect to run both directions
axis: 'xy',
onAfter: trigger, // our final callback
offset: offset,
// duration of the sliding effect
duration: 500,
// easing - can be used with the easing plugin:
// http://gsgd.co.uk/sandbox/jquery/easing/
easing: 'swing'
};
// apply serialScroll to the slider - we chose this plugin because
it
// supports// the indexed next and previous scroll along with
hooking
// in to our navigation.
$('#slider').serialScroll(scrollOptions);
// now apply localScroll to hook any other arbitrary links to
trigger
// the effect
$.localScroll(scrollOptions);
// finally, if the URL has a hash, move the slider in to
position,
// setting the duration to 1 because I don't want it to scroll in
the
// very first page load. We don't always need this, but it
ensures
// the positioning is absolutely spot on when the pages loads.
scrollOptions.duration = 1;
$.localScroll.hash(scrollOptions);
});
I have removed the static button creation and I have added the
function updateButtons in order to change the buttons.
Here the issue I’m facing right now: the buttons work only when the
page is loaded; after clicking on one of them or on a navigation link
the buttons don’t work anymore. The images are correctly updated if I
use the navigation links but nothing happens when I click them.
Adding a console log message within updateButtons I have noticed the
function is executed twice when i click a navigation link but only
once when I click the buttons. Perhaps this information can give you
some clues about the problem.
Any idea about why this happens?
Thanks for any help. I do appreciate it.
Sig