// 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
    //$scroll
    //.before('<img class="scrollButtons left" src="images/scroll_left.png" />')
    //.after('<img class="scrollButtons right" src="images/scroll_right.png" />');
    // handle nav selection
    function selectNav(vClicked) {
        if ($(this).hasClass('selected') && vClicked) {
            vUrl = $(this).attr('url');
            if (vUrl) {
                window.location = vUrl;
            }
        }
        else {
            $(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: 800,

        // 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);

    //Autoplay

    // first hide the navigation buttons    
    var $buttons = $('img.right').add('img.left').hide();

    // start to automatically cycle the tabs
    /*var cycleTimer = setInterval(function () {
        $scroll.trigger('next');
    }, 18000);*/

    // select some trigger elements to stop the auto-cycle
    var $stopTriggers = $('#slider .navigation').find('a') // tab headers
        .add('.scroll')                                     // panel itself
        .add("a[href^='#']");                               // links to a tab

    // this is the function that will stop the auto-cycle
    function stopCycle() {
        $stopTriggers.unbind('click.cycle');   // remove the no longer needed stop triggers
        clearInterval(cycleTimer);             // stop the auto-cycle itself
        $buttons.show();                       // show the navigation buttons
    }

    // bind stop cycle function to the click event using namespaces
    $stopTriggers.bind('click.cycle', stopCycle);
});