$.fn.infiniteCarousel = function () {

    function repeat(str, num) {
        return new Array( num + 1 ).join( str );
    }

    return this.each(function () {
        var $wrapper    = $('> div', this).css('overflow', 'hidden'),
            $slider     = $wrapper.find('> ul'),
            $items      = $slider.find('> li'),
            $single     = $items.filter(':first'),
            singleWidth = $single.outerWidth(),
            visible     = Math.ceil($wrapper.innerWidth() / singleWidth), // note: doesn't include padding or border
            currentPage = 0,
            page_size   = 2,
            pages       = $items.length;

        // 2. Top and tail the list with 'visible' number of items, top has the last section, and tail has the first
        $items.filter(':first').before($items.slice(- pages).clone().addClass('cloned'));
        $items.filter(':last').after($items.slice(0, pages).clone().addClass('cloned'));
        $items = $slider.find('> li'); // reselect

        // 3. Set the left position to the first 'real' item
        $wrapper.scrollLeft(singleWidth * pages);

        // 4. paging function
        function gotoPage(page) {
            var dir  = page < currentPage ? -1 : 1,
                n    = Math.abs(currentPage - page),
                left = singleWidth * dir * n;

            $wrapper.filter(':not(:animated)').animate(
                { scrollLeft : '+=' + left }, 500, function(){

                if (page < 0) {
                    page = pages + page;
                    $wrapper.scrollLeft(singleWidth * (page + pages));
                }
                else if (page > pages) {
                    page = page - pages;
                    $wrapper.scrollLeft(singleWidth * (page + pages));
                }

                currentPage = page;
            });

            return false;
        }

        $wrapper.after('<a class="arrow left"></a><a class="arrow right"></a>');

        // 5. Bind to the forward and back buttons
        $('a.left', this).click(function () {
            return gotoPage(currentPage - page_size);
        });

        $('a.right', this).click(function () {
            return gotoPage(currentPage + page_size);
        });

        // create a public interface to move to a specific page
        $(this).bind('goto', function (event, page) {
            gotoPage(page);
        });
    });
};