// 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);

var currSlide = data.id;
var lastSlide = "";
var captionText ="";

switch(currSlide) {
case "1":
  captionText = 'Chelsea Clinton is greeted by a toddler in a village in Rwanda.<br /><br />Photo Credit: Barbara Kinney/Clinton Foundation';
  break;    
case "2":
  captionText = "President Bill Clinton meets with Jean Pierre, a HIV-positive teenage boy near the village of Rwinkwavu, Rwanda.<br /><br />Photo Credit: Barbara Kinney/Clinton Foundation";
  break;
case "3":
  captionText = 'A boy watches as President Clinton speaks to a crowd of 6,000 people about efforts to increase access to affordable malaria medicines in Tanzania.<br /><br />Photo Credit: Ralph Alswang/Clinton Foundation';
  break;
case "4":
  captionText = 'President Clinton greets workers in Neno, Malawi, where construction has begun on a new hospital aimed at providing health care to rural communities.<br /><br />Photo Credit: Win McNamee/Getty Images for the Clinton Foundation';
  break;
case "5":
  captionText = 'A woman waits in the pediatric ward in Tanzania to receive medication for her child.<br /><br />Photo Credit: Sala Lewis';
  break;
case "6":
  captionText = 'A nurse talks with a woman in Tanzania about her treatment regimen. CHAI helps many countries train and place health care workers to provide services where they are needed most.<br /><br />Photo Credit: Sala Lewis';
  break;
case "7":
  captionText = 'A nurse keeps track of medicine distribution at a hospital in Rwinkwavu, Rwanda.<br /><br />Photo Credit: Ilvy Njiokiktjien';
  break;
case "8":
  captionText = 'A young boy being treated for HIV/AIDS stands next to his bed at a hospital in Rwinkwavu, Rwanda.<br /><br />Photo Credit: Ilvy Njiokiktjien';
  break;
case "9":
  captionText = 'Manhesh, a 10 year old boy who lives in Bangalore, India, discusses his HIV/AIDS medicine, with his doctor and grandmother. Manhesh is under the care of his grandmother after losing both of his parents.<br /><br />Photo Credit: Nisha Sondhe';
  break;
case "10":
  captionText = "Former President Clinton visits a rural drug shop in Tanzania where local residents can buy affordable, effective malaria medications thanks to CHAI's pilot subsidy program.<br /><br />Photo Credit: Ralph Alswang/Clinton Foundation";
  break;
case "11":
  captionText = 'A mother holds her child as he is tested for HIV in Tanzania.<br /><br />Photo Credit: Sala Lewis';
  break;
case "12":
  captionText = 'President Clinton greets spectators at a groundbreaking ceremony for a new hospital in Burera, Rwanda.  Burera is the first district targeted in a plan to vastly improve rural health care in Rwanda, an effort supported by CHAI and the government of Rwanda.<br /><br />Photo Credit: Barbara Kinney/Clinton Foundation';
  break;
case "13":
  captionText = 'President Clinton greets Ariette, an HIV-positive young girl in Lesotho. Through the pricing agreements of CHAI, she is able access medicine that helps her lead a healthy life.<br /><br />Photo Credit: Ralph Alswang/Clinton Foundation';
  break;
case "14":
  captionText = 'A toddler smiles as President Clinton visits the site of a new hospital in Neno, Malawi. The hospital is a partnership between CHAI and Partners in Health, which now delivers health care to nearby villages.<br /><br />Photo Credit: Win McNamee/Getty Images for the Clinton Foundation';
  break;
case "15":
  captionText = "A young girl greets Chelsea Clinton in a village in Rwanda where more people can now access health care because of CHAI's work to expand rural health care services.<br /><br />Photo Credit: Barbara Kinney/Clinton Foundation";
  break;
default:
  captionText = 'Chelsea Clinton is greeted by a toddler in a village in Rwanda.<br /><br />Photo Credit: Barbara Kinney/Clinton Foundation';

}

captionText = '<strong>Slide ' + currSlide + '</strong><br /><br />' + captionText;
document.getElementById("slideCaption").innerHTML = captionText;

    }

    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,
        duration: 5,

        // 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);

});