var Grid = function ($target = $('.js-grid')) {
  if (!$target.length) {
    return;
  }

  $target.each(function () {

    var
      $current = $(this),
      $currentLazyImages = $current.find('img[data-src]'),
      currentInstance;

    currentInstance = $current.isotope({
      itemSelector: '.js-grid__item',
      columnWidth: '.js-grid__sizer',
      percentPosition: true
    });

    loadLazyImages($currentLazyImages, false, function () {
      $current.imagesLoaded().always(function () {
        currentInstance.isotope('layout');
      });
    });

    // update non-lazy images
    $current.imagesLoaded().always(function () {
      currentInstance.isotope('layout');
    });

    // =============== Add this =============== //
    currentInstance.on('arrangeComplete', function () {
      loadLazyImages($currentLazyImages, false);
    });

  });

  return $target;
}