[рони]

giwuf,

if( method.length ) {	
      $('.fc-list-item').hide();
      $('.fc-list-heading').hide();
      $('.fc-list-item.' + method).show()
     .each(function() {
     $(this).prevAll('.fc-list-heading:first').show();
     })
}

https://jsfiddle.net/xc5ody5m/111/