JavaScript Close Event for Player iframe Plugin: http://player.kaltura.com/docs/LimeSurvey (this should be called from within the LimeSurvey's close message window)

player-iframe-close-js-event.html

<script>
function getUrlParams() {
  var params = { };
  document.referrer.replace(/[?&]+([^=&]+)=([^&]*)/gi, function(str,key,value) {
    params[key] = value;
  });
 
  return params;
}
var params = getUrlParams();
parent.postMessage(JSON.stringify( { 'status':'ok', 'playerId': params.playerId} ), '*' );
</script>