<script>
// Initialize variables from Visit/Visitor if needed
var c2 = Visit.customAttributes.c2;
var ifrm3 = document.createElement('iframe');
ifrm3.setAttribute('id', 'ifrm3');
document.body.appendChild(ifrm3);

// Assign src url
ifrm3.setAttribute('src', 'https://www.p2kdjk34dd.com/?nid=1954&aid=621&adv_event_id=38&transaction_id='+c2);
</script>