window.addEvent("domready", function(){

   $$(".track-links a").each(function(l) {
        l.addEvent("click", function(e){
            var target = new URI(e.target.href);
            var current = new URI(document.location);
            // check it's an external link
            if(target.get("host") != current.get("host")){
                Track.track(target.toAbsolute());
            }
        });
   });
});