<script>
var clickid = Visit.customAttributes.click_id;
var originid = Visit.customAttributes.origin_id;

var ifrm = document.createElement('iframe');
ifrm.setAttribute('id', 'ifrm'); // assign an id
document.body.appendChild(ifrm); // to place at end of document
// assign url
ifrm.setAttribute('src', 'https://tbltrk.com/p.ashx?o=450&e=69&t='+originid+'&r='+clickid);
</script>