ttrefren

<script type="text/javascript" src="http://api.mixpanel.com/site_media/js/api/mixpanel.js"></script>
<script type="text/javascript">
    try {
        var mpmetrics = new MixpanelLib("YOUR TOKEN");
    } catch(err) {
        null_fn = function () {};
        var mpmetrics = { track: null_fn, track_funnel: null_fn, register: null_fn, register_once: null_fn };
    }
</script>
...

ttrefren

<!-- First include the script: -->
<script type="text/javascript">
var mp_protocol = (("https:" == document.location.protocol) ? "https://" : "http://");
document.write(unescape("%3Cscript src='" + mp_protocol + "api.mixpanel.com/site_media/js/api/mixpanel.js' type='text/javascript'%3E%3C/script%3E"));
</script>
 
<!-- Initialize it with your project token -->
<script type="text/javascript">
try { 
    var mpmetrics = new MixpanelLib("YOUR_TOKEN");