document.addEventListener("DOMContentLoaded", function() {
var gallery = document.querySelector('.wp-block-gallery'); // Adjust this if your gallery class is different
var images = gallery.querySelectorAll('figure.wp-block-image');
var adCode = '
YOUR AD CODE HERE
'; // Replace 'YOUR AD CODE HERE' with your actual ad code
if (images.length > 1) {
for (var i = 1; i < images.length; i += 2) { // This will place an ad after every second image
var adDiv = document.createElement('div');
adDiv.innerHTML = adCode;
adDiv.className = 'gallery-ad';
if (images[i].parentNode) {
images[i].parentNode.insertBefore(adDiv, images[i].nextSibling);
}
}
}
});