document.addEventListener("DOMContentLoaded", function () { const checkbox = document.querySelector('input[name="properties[Draw Me as a Character]"]'); if (!checkbox) return; const variantId = 46882773041411; let added = false; checkbox.addEventListener("change", function () { if (this.checked && !added) { fetch("/cart/add.js", { method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify({ id: variantId, quantity: 1 }) }).then(() => { added = true; }); } else if (!this.checked && added) { fetch("/cart/change.js", { method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify({ id: variantId, quantity: 0 }) }).then(() => { added = false; }); } }); });