document.addEventListener(“DOMContentLoaded”, function () {const submitBtn = document.getElementById(“btnSubmit”); const form = submitBtn.closest(“form”);const addressSection = document.querySelector(“#address-section”); const addressFields = addressSection.querySelectorAll(“input, select”);const email = form.querySelector(‘input[type=”email”]’);// find the three email subscription checkboxes const subscriptionCheckboxes = […form.querySelectorAll(‘input[type=”checkbox”]’)] .filter(cb => { const label = cb.parentNode.textContent; return label.includes(“Weekly Email”) || label.includes(“Monthly Email”) || label.includes(“Youth Email”); });function updateRequirements() {const emailSelected = subscriptionCheckboxes.some(cb => cb.checked);// EMAIL required logic email.required = emailSelected;// ADDRESS required logic addressFields.forEach(field => { field.required = emailSelected; });}function validateForm() {let valid = true;const requiredFields = form.querySelectorAll(“input[required], select[required]”);requiredFields.forEach(field => { if (!field.value.trim()) { valid = false; } });const oneChecked = form.querySelectorAll(‘input[type=”checkbox”]:checked’).length > 0;if (!oneChecked) valid = false;submitBtn.disabled = !valid;}form.querySelectorAll(“input, select”).forEach(el => { el.addEventListener(“input”, validateForm); el.addEventListener(“change”, function () { updateRequirements(); validateForm(); }); });updateRequirements(); validateForm();});