fix.js

    $(document).ready(function() {
        var i = 2;
        setInterval(function() {
            var setSearchBgimg = function setSearchBgimg(number) {
              $(".search-bgimg").css("background", "url('/static/img/search-bgimg' + number + '.jpg')");
            }
            $(".search-bgimg").hide();
            setSearchBgimg(i);
            console.log('/static/img/search-bgimg' + i + '.jpg');
            $(".search-bgimg").fadeIn();
            i++;
            if (i == 4) i = 1;
    }, 5000);
    });