for (Kolonne kol : listofColumns) {

            final int j = counter;
            Column col = new Column(kol.NAVN);
            mapKolonneTableColumn.put(kol, col);

            if (kol.amIInteger) {
                col.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<ObservableList, Number>, ObservableValue<Number>>() {
                    public ObservableValue<Number> call(TableColumn.CellDataFeatures<ObservableList, Number> param) {
                        return new SimpleIntegerProperty(Integer.parseInt(param.getValue().get(j).toString()));

                    }
                });
                System.out.println("truew");
            } else if (kol.amIDouble) {
                col.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<ObservableList, Number>, ObservableValue<Number>>() {
                    public ObservableValue<Number> call(TableColumn.CellDataFeatures<ObservableList, Number> param) {
                        return new SimpleDoubleProperty(Double.parseDouble(param.getValue().get(j).toString()));

                    }
                });
                System.out.println("true3");

            } else if (!kol.amIDouble && !kol.amIInteger) {
                col.setCellValueFactory(new Callback<TableColumn.CellDataFeatures<ObservableList, String>, ObservableValue<String>>() {
                    public ObservableValue<String> call(TableColumn.CellDataFeatures<ObservableList, String> param) {
                        return new SimpleStringProperty(param.getValue().get(j).toString());

                    }
                });






// KLARER DU FÅ DENE TIL Å PASSE ALLE?!?!?

               col.setCellFactory(new Callback<TableColumn<ObservableList, String>, TableCell<ObservableList, String>>() {
                    @Override
                    public TableCell<ObservableList, String> call(TableColumn<ObservableList, String> col) {
                        final TableCell<ObservableList, String> cell = new TableCell<ObservableList, String>() {
                            @Override
                            public void updateItem(String firstName, boolean empty) {
                                super.updateItem(firstName, empty);
                                if (empty) {
                                    setText(null);
                                } else {
                                    setText(firstName);
                                }
                            }
                        };
                        cell.addEventHandler(MouseEvent.MOUSE_CLICKED, new EventHandler<MouseEvent>() {
                            @Override
                            public void handle(MouseEvent event) {
                                if (event.getClickCount() > 1) {
                                    System.out.println("double click on " + rowMessages.get(cell.getIndex()));
                                }
                            }
                        });
                        return cell;
                    }
                });

            }