(function ($) {



$.fn.simpleSpy = function (limit, interval) {

    limit = limit || 4;

    interval = interval || 7000;



    return this.each(function () {

        // 1. setup

            // capture a cache of all the list items

            // chomp the list down to limit li elements

        var $list = $(this),

            items = [], // uninitialised

            currentItem = limit,

            total = 0, // initialise later on

            height = $list.find('> li:first').height();



        // capture the cache

        $list.find('> li').each(function () {

            items.push('<li>' + $(this).html() + '</li>');

        });



        total = items.length;



        $list.wrap('<div class="spyWrapper" />').parent().css({ height : height * limit });



        $list.find('> li').filter(':gt(' + (limit - 1) + ')').remove();



        // 2. effect

        function spy() {

            // insert a new item with opacity and height of zero

            var $insert = $(items[currentItem]).css({

                height : 0,

                opacity : 0,

                display : 'none'

            }).prependTo($list);



            // fade the LAST item out

            $list.find('> li:last').animate({ opacity : 0}, 1000, function () {

                // increase the height of the NEW first item

                $insert.animate({ height : height }, 1000).animate({ opacity : 1 }, 1000);



                // AND at the same time - decrease the height of the LAST item

                // $(this).animate({ height : 0 }, 1000, function () {

                    // finally fade the first item in (and we can remove the last)

                    $(this).remove();

                // });

            });



            currentItem++;

            if (currentItem >= total) {

                currentItem = 0;

            }



            setTimeout(spy, interval)

        }



        spy();

    });

};



})(jQuery);