document.addEventListener("DOMContentLoaded", function() {
var thumbnails = document.querySelectorAll(".product-thumbnail");
thumbnails.forEach(function(thumbnail) {
thumbnail.addEventListener("click", function() {
var variantId = this.dataset.variantId;
var selectElement = document.querySelector("select[name='id']");
if (variantId && selectElement) {
selectElement.value = variantId;
}
});
});
});
