var ping_url = "https://a.thatsping.com/t/track?";

function tracking(campaignId) {
  var d = document;
  var referrer = d.referrer;

  var params = "r=" + encodeURIComponent(referrer) + "&cid=" + campaignId + "&url=" + encodeURIComponent(location.href);
  d.write('<img src="' + ping_url + params + '" style="display:none" alt=""/>');
}

function trackingEP(campaignId) {
  ping_url = "https://a.thatsping.com/t/trackEP?";
  tracking(campaignId)
}

function trackingAThomeSubmit(campaignId, num) {
  ping_url = "https://a.thatsping.com/t/trackEPAthome?";

  var d = document;
  var referrer = d.referrer;

  var params = "r=" + encodeURIComponent(referrer) + "&cid=" + campaignId 
			+ "&url=" + encodeURIComponent(location.href)
			+ "&num=" + num;
  d.write('<img src="' + ping_url + params + '" style="display:none" alt=""/>');
}