$(function () {
    //bigsale animation
    var bigsaleTimeout = null;
    $('#bigsale-animation').each(function () {
        displayNextBigsaleItem.call(this, true);
    });
    function displayNextBigsaleItem(init) {
        var $banners = $(this);
        var $bannerItems = $(this).find('div.bigsale-item');
        var animationDuration = 1000;
        if ($bannerItems.length > 1) {
            var bannerItemCur = $banners.find('div.bigsale-item:visible:eq(0)');
            var duration = 0;
            if (init) {
                duration = parseInt(bannerItemCur.find('input[name=duration]').val());
            } else {
                var nextItem = bannerItemCur.next('div.bigsale-item');
                if (nextItem.length == 0) {
                    nextItem = $banners.find('div.bigsale-item:first');
                }
                bannerItemCur.fadeOut(animationDuration);
                nextItem.fadeIn(animationDuration);
                duration = parseInt(nextItem.find('input[name=duration]').val());
            }
            if (!duration) {
                duration = 5000;
            }
            bigsaleTimeout = window.setTimeout(function () {
                displayNextBigsaleItem.call($banners[0]);
            },duration + animationDuration);
        }
    }
});