// 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

// 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);
});