// 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');

$scroll.attr({scrollTop:0,scrollLeft:0});

//apply our left + right buttons
$scroll

  .before('<img class="scrollButtons left" src="images/scroll_left.jpg" />')

  .after('<img class="scrollButtons right" src="images/scroll_right.jpg" />');

// 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: 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);

});