UTM Tracker vNative

utm_tracker.html

<script type="text/javascript">
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');
if (campaign.length) {
	jQuery('body').append(jQuery('<img>', {src: 'https://track.vnative.com/impPixel?adid=' + campaign + '&pid=' + source}));
}
</script>