User-1838255255 posted
Hi progy85,
According to your description, I agree bruce's reply to get value, about how to add it as parameter to URL, I make a sample, please refer to this sample:
<head>
<title></title>
<meta charset="utf-8" />
<script>
window.onload = function () {
var value = document.getElementById("paenet").getAttribute("partnerid");
var url = window.location.href;
var newurl = url + "?partnerid=" + value;
alert(newurl);
};
</script>
</head>
<body>
<iframe id="paenet" partnerid="uQh86v9n60"></iframe>
</body>
Result:

Best Regards,
Eric Du