function start_course(id){
        var response;
                $.ajax({
                  type: 'GET',
                  url: '/courses/start_course/',
                  async: false,
                  success: function(data) {
                      response = data;
                  },
                  error:  function(xhr, str){
                    console.log('Возникла ошибка get_settings_data(): ' + xhr.responseCode);
                  }
                });
    return response
}