$.getScript("/datajs/jquery.bgswitcher.js", function(){
    $('.backloop').bgSwitcher({
        images: ['https://www.kyoeienterprise.co.jp/dataimge/1578560477.png','https://www.kyoeienterprise.co.jp/dataimge/1578560485.png','https://www.kyoeienterprise.co.jp/dataimge/1578560492.png','https://www.kyoeienterprise.co.jp/dataimge/1578560502.png'], 
        interval: 3000, 
        loop: true, 
        shuffle: false, 
        effect: "fade", 
        duration: 1000, 
        easing: "swing",
    });
});