Implements IAB's SafeFrame option, as described in http://parse.ly/docs/integration/tracking/alternative.html#safeframe

safeframe_ext_support.html

<script>
/*
 * $sf.ext.meta looks up metadata from parent window. Here's
 * the relevant documentation from the SafeFrame standard:
 * 
 * "Use to retrieve metadata about the SafeFrame position that 
 * was specified by the host. The host may specify additional
 * metadata about this 3rd party content. The host specifies
 * this metadata using the $sf.host.PosMeta class."
 *
 * The rest of this code does not depend on SafeFrame.
 */
function getParam(name) {
    return $sf.ext.meta(name);
};

/*
 * Called when the Parse.ly bootstrap code finishes loading.
 */
function handleParselyOnload() {
  var url = getParam("url"),
      urlref = getParam("urlref"),
      title = getParam("title");
  PARSELY.beacon.trackPageView({
      url: url,
      urlref: urlref,
      title: title,
      js: 1,
      action_name: "Yahoo SafeFrame PV"
  });
};

/*
 * Configures Parse.ly bootstrap code for custom load-time behavior.
 */
PARSELY = {
    // don't use default tracking, which will use wrong
    // url, urlref, and title properties
    autotrack: false,
    // use our custom handler to fetch them from parent page
    onload: handleParselyOnload
};

/*
 * Standard DOM-free Parse.ly tag
 */
(function(d) {
  var site = "eurosport.fr",
      b = d.body,
      e = d.createElement("div");
  e.innerHTML = '<span id="parsely-cfg" data-parsely-site="'+site+'"></span>';
  e.id = "parsely-root";
  e.style.display = "none";
  b.appendChild(e);
})(document);
(function(s, p, d) {
  var h=d.location.protocol, i=p+"-"+s,
      e=d.getElementById(i), r=d.getElementById(p+"-root"),
      u=h==="https:"?"d1z2jf7jlzjs58.cloudfront.net"
      :"static."+p+".com";
  if (e) return;
  e = d.createElement(s); e.id = i; e.async = true;
  e.src = h+"//"+u+"/p.js"; r.appendChild(e);
})("script", "parsely", document);
</script>