ActiveCampaign site tracking

ActiveCampaign site tracking with email capture from url

<!-- parse email variable from url, load in header -->
<script>
function GetUrlValue(VarSearch) {
  var SearchString = window.location.search.substring(1);
  var VariableArray = SearchString.split('&');
  for (var i = 0; i < VariableArray.length; i++) {
    var KeyValuePair = VariableArray[i].split('=');
    if (KeyValuePair[0] == VarSearch) {
      return KeyValuePair[1];
    }
  }
}
var email = GetUrlValue("email");
var trackcmp_email = (typeof(email) != "undefined") ? email : '';
</script>
<!-- activecampaign site tracking code, with email variable replaced, load in footer -->
<script type="text/javascript">
	var trackcmp_email = (typeof(email) != "undefined") ? email : '';
	var trackcmp = document.createElement("script");
	trackcmp.async = true;
	trackcmp.type = 'text/javascript';
	trackcmp.src = '//trackcmp.net/visit?actid=[AC_ACCOUNTID_GOES_HERE]&e='+encodeURIComponent(trackcmp_email)+'&r='+encodeURIComponent(document.referrer)+'&u='+encodeURIComponent(window.location.href);
	var trackcmp_s = document.getElementsByTagName("script");
	if (trackcmp_s.length) {
		trackcmp_s[0].parentNode.appendChild(trackcmp);
	} else {
		var trackcmp_h = document.getElementsByTagName("head");
		trackcmp_h.length && trackcmp_h[0].appendChild(trackcmp);
	}
</script>