$.getScript("/datajs/jquery.bgswitcher.js", function(){
    $('.backloop').bgSwitcher({
        images: ['https://www.oniwaya-niwayoshi.com/dataimge/1592265488.jpg','https://www.oniwaya-niwayoshi.com/dataimge/1592265493.jpg'], 
        interval: 4000, 
        loop: true, 
        shuffle: false, 
        effect: "hide", 
        duration: 1000, 
        easing: "linear",
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});