Facebook Like Event

snippet.html

<script type="text/javascript">
    window.fbAsyncInit = function() {
        FB.init({appId: '193060914138470', status: true, cookie: true, xfbml: true});

        FB.Event.subscribe('edge.create', function(href, widget) {
            seg.track('Liked on Facebook');
        });

    };
    (function() {
        var e = document.createElement('script');
        e.type = 'text/javascript';
        e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js';
        e.async = true;
        document.getElementById('fb-root').appendChild(e);
    }());
</script>