document.addEventListener("DOMContentLoaded", (event) => {
loadPaycorpPayment(buildPayment(), 'paycorp-payment');
function buildPayment() {
clientId: 14000003,// supplied by paycorp
returnUrl: 'http://yourdomain/payment-response',
comment: 'This is a demo payment'
<div id="paycorp-payment" class="paycorp-payment">