// when the DOM is ready...
$(document).ready(function () {
	
	createSlider("nieuwsSlider", false);
	createSlider("popupSlider", true);

});

function createSlider(id, horizontal) {
	var $panels = $('#' + id + ' .scrollContainer > div');
    var $container = $('#' + id + ' .scrollContainer');


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

    // float the panels left if we're going horizontal
    if (horizontal) {
        $panels.css({
            'float' : 'left',
            'position' : 'relative' // IE fix to ensure overflow is hidden
        });

        if ($panels[0])
        {
			// 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 = $('#' + id + ' .scroll').css('overflow', 'hidden');

    // apply our left + right buttons
    $scroll
        .before('')
        .after('');


    $('#' + id + ' .navigation').find('a').click(sliderSelectNav);

    if (window.location.hash) {
        sliderTrigger({ scrollerID: id, 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: sliderTrigger, // 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'
    };

	if (typeof($('#' + id).serialScroll) == "undefined")
		return ;
	// 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.
	$('#' + id).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);
}

// go find the navigation link that has this target and select the nav
function sliderTrigger(data) {
	var el = $('#' + data.scrollerID + ' .navigation').find('a[href$="' + data.id + '"]').get(0);
	sliderSelectNav.call(el);
}


// handle nav selection
function sliderSelectNav() {
	$(this)
		.parents('ul:first')
			.find('a')
				.removeClass('selected')
			.end()
		.end()
		.addClass('selected');
}