(function(){
  var qs = (function () {
    var parameter_values = {};
    var search_without_question_mark = window.location.search.slice(1);
    var search_parameters = search_without_question_mark.split('&');
    for (var i = 0; i < search_parameters.length; ++i) {
      var search_parameter = search_parameters[i];
      var search_parameter_parts = search_parameter.split('=');
      var parameter_name = decodeURIComponent(search_parameter_parts[0]);
      var parameter_value;
      try {
        parameter_value = search_parameter_parts[1] && decodeURIComponent(search_parameter_parts[1]);
      } catch (e) {
        // If the value is malformed, we'll just use the value as-is.
        parameter_value = search_parameter_parts[1];
      }
      parameter_values[parameter_name] = parameter_value;
    }

    return parameter_values;
  })();

  var pub_id = decodeURIComponent(qs.pubid);
  if (!pub_id) return;

  window.parent.postMessage(JSON.stringify({ id: pub_id, type: 'collapsed' }), "*");
})();