anchor.diff:                      success: function (data) {
                           if (data.status == true) {
                               if(data.alert!=''){
  +                                document.getElementById("ClassroomAction").value = 'update';
                                   showModal(0, 'modal-1');
                                   conformData(3, {message: data.alert, btnName: 'Cập nhật', choose: 2, object: {id: 'createClassroomForm'}});
                               }else{
  
positive.code:             function showRoomtype() {
                  var selectedValue = $('#selectBox').find(":selected").data("value");
                  document.getElementById("loaiphong").innerHTML = selectedValue.name;
              }
  
              document.getElementById("${tab1}").className += " active";
              document.getElementById("${tab1}").setAttribute("data-main", "1");
          </script>
  
negative.code:                         success: function (data) {
                              if (data.status == true) {
                                  if(data.alert!=''){
                                      document.getElementById('RoomTypeAction').value= 'update';
                                      showModal(0, 'modal-4');
                                      conformData(3, {message: data.alert, btnName: 'Cập nhật', choose: 2, object: {id: 'createRoomType'}});
                                  }else{
  