Option 2

paypal.Buttons({ style: { shape: 'rect', color: 'white', layout: 'horizontal', label: 'subscribe' }, createSubscription: function(data, actions) { return actions.subscription.create({ /* Creates the subscription */ plan_id: 'P-4C541961HF236472FMUGSVGA' }); }, onApprove: function(data, actions) { alert(data.subscriptionID); // You can add optional success message for the subscriber here } }).render('#paypal-button-container-P-4C541961HF236472FMUGSVGA'); // Renders the PayPal button