// when the DOM is ready...
jQuery(document).ready(function () {

    // if false, we'll float all the panels left and fix the width 
    // of the container
    var horizontal = true;

    // End of customization

    var $widget = jQuery('#slider'),
        $container = jQuery( '.scrollContainer', $widget ),
        $panels = jQuery( '> div', $container ),
        $links = jQuery( 'ul.navigation a', $widget );

    // 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.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 = jQuery( '.scroll', $widget ).css('overflow', 'hidden');

    // apply our left + right buttons
    $scroll
        .before('<img class="scrollButtons left" src="/images/leftArrowGreen3.gif" />')
        .after('<img class="scrollButtons right" src="/images/rightArrowGreen3.gif" />');

    var scrollOptions = {
        target: $scroll, // the element that has the overflow

        // can be a selector which will be relative to the target
        items: $panels,

        // 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: horizontal ? 'x' : 'y',

        onBefore: function( e, panel ){// callback
            $links.removeClass('selected')
                .filter('[hash=#' + panel.id + ']')
                .addClass('selected');
        }, 

        margin: true,

        // 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.
    $widget.serialScroll(scrollOptions);

    // now apply localScroll to hook any other arbitrary links to trigger 
    // the effect
    jQuery.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.
    if( location.hash ){
        scrollOptions.duration = 1;
        jQuery.localScroll.hash(scrollOptions);
    }else{
        $links.eq(0).click();
    }
});