code: function getPenId() {
  	var url = getParsedUrl();
  	var splitPath = url.path.split('/');
  	var id = splitPath[splitPath.length - 1];
  	return id;
  }
docs: Returns the pen ID, useful for setting the sync instanceId.
  @method getPenId
  @return {String}
  @memberof module:altspace/utilities/codePen