NORAD Tracks Santa Countdown Widget

HTML

<script type="text/javascript" id="norad-tracks-santa-countdown-embedder-e9dd91c2-9d67-4f9d-b8e2-a58aa92fcb8b"
        class="norad-tracks-santa-countdown-async-script-loader">
    // !! To embed multiple instances of this widget the 'id' of the script tag has to be made unique. !!
    // !! And the script tag 'id' should match the one in line 6 below                                 !!
    (function () {
        var scriptId = 'norad-tracks-santa-countdown-embedder-e9dd91c2-9d67-4f9d-b8e2-a58aa92fcb8b';
        function async_load() {
            var s = document.createElement('script');s.type = 'text/javascript';s.async = true;
            var theUrl = 'http://noradsantacountdown.cloudapp.net/api/countdownwidget?id=' + scriptId;
            s.src = theUrl + ( theUrl.indexOf("?") >= 0 ? "&" : "?") + 'ref=' + encodeURIComponent(window.location.href);
            var embedder = document.getElementById(scriptId);
            embedder.parentNode.insertBefore(s, embedder);
        }
        if (window.attachEvent) window.attachEvent('onload', async_load);
        else window.addEventListener('load', async_load, false);
    })();
</script>