I am using glider.js https://nickpiscitelli.github.io/Glider.js/ and try to add multiple gliders to a website:

$('.glider').each(function(elm) {
new Glider(document.querySelector('#'+elm.id), {
    slidesToShow: 2,
    dots: '#glider-dots-'+elm.id,
    arrows: {
        prev: '#glider-prev-'+elm.id,
        next: '#glider-next-'+elm.id
    }
});

});

The glider loads but the problem is that the dots, prev and next button does not work.