$.getScript("/datajs/jquery.bgswitcher.js", function(){
    $('.backloop').bgSwitcher({
        images: ['https://www.tdekk.co.jp/dataimge/1600053922.jpg','https://www.tdekk.co.jp/dataimge/1600062151.jpg','https://www.tdekk.co.jp/dataimge/1597816285.jpg','https://www.tdekk.co.jp/dataimge/1597816292.jpg'], 
        interval: 3000, 
        loop: true, 
        shuffle: false, 
        effect: "fade", 
        duration: 500, 
        easing: "linear",
    });
});