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function kkHandleSubscribe(e) { e.preventDefault(); var form = document.getElementById('kk-homepage-subscribe'); var emailInput = form.querySelector('input[name="sub_email"]'); var msgDiv = document.getElementById('kk-sub-message'); var email = emailInput.value.trim(); if (!email || !email.includes('@') || !email.includes('.')) { msgDiv.style.display = 'block'; msgDiv.style.color = '#c0392b'; msgDiv.textContent = 'Please enter a valid email address.'; return false; } var btn = form.querySelector('button[type="submit"]'); btn.textContent = 'Submitting...'; btn.disabled = true; var formData = new FormData(form); fetch(form.action, {method: 'POST', body: formData}).then(function(resp) { msgDiv.style.display = 'block'; msgDiv.style.color = '#27ae60'; msgDiv.innerHTML = '✓ You are subscribed! Check your inbox for confirmation.'; emailInput.value = ''; btn.textContent = 'SUBSCRIBED!'; btn.style.backgroundColor = '#27ae60'; }).catch(function(err) { msgDiv.style.display = 'block'; msgDiv.style.color = '#c0392b'; msgDiv.textContent = 'Something went wrong. Please try again.'; btn.textContent = 'SUBSCRIBE'; btn.disabled = false; }); return false; }