/**
 * This is the main function - The only one that we should call from outside this file
 */
function doPayment(paymentRequest) {
  return new Promise((resolve, reject) => {
    const onCreateCardCallback = create3DSecure(paymentRequest, resolve, reject);
    return Stripe.source.create({

/**
 * When we click on a card
 */
 $('#btnpay').click(function(){
  const paymentRequest = {
    cardNumber:  $('#cartno').val(),
    expYear: $('#expYear').val(),
    expMonth: $('#expMonth').val(), 
    cvc: $('#cvcno').val(),
    currency: 'GBP', 
    amount: $('#amount').val(),
    nativeElement: