Hey, I'm trying to see where I can find how hidden fields on forms are linked to the html of that displays on our web page? I've seen this: 

<script type="text/javascript">

// Parse the URL

function getParameterByName(name) {

    name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");

    var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),

    results = regex.exec(location.search);

    return results === null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));

}

// Give the URL parameters variable names

var source = getParameterByName('utm_source');

var medium = getParameterByName('utm_medium');

var campaign = getParameterByName('utm_campaign');

// Put the variable names into the hidden fields in the form. selector should be "p.YOURFIELDNAME input"

document.querySelector("p.last_touch_source input").value = source;

document.querySelector("p.last_touch_medium input").value = medium;

document.querySelector("p.last_touch_campaign input").value = campaign;

</script>

But I want to know how to actually find this in pardot, and where this would be added when building new forms/landing pages