/ 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');

    / apply our left + right buttons
    $scroll
        .before('<img class="scrollButtons left" src="images/scroll_left.png" />')
        .after('<img class="scrollButtons right" src="images/scroll_right.png" />');

    / handle nav selection
    function selectNav() {
        $(this)
            .parents('ul:first')
                .find('a')
                    .removeClass('selected')
                .end()
            .end()
            .addClass('selected');
    }

    $('#slider .navigation').find('a').click(selectNav);

    / 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);
    }

    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);

});