public void loadPlattformar() {
        PanelHelper.cleanPanel(plattformHolder);
        ArrayList<String> al = null;
        try {
            al = DB.fetchColumn("select pid from plattform");
        } catch (InfException e) {
            e.getMessage();
        }

        for (String st : al) {
            if (Validate.containsOnlyDigits(st)) {
                PanelHelper.addPanelToPanel(new PlattformShowBox(Integer.parseInt(st)), plattformHolder, 500, 50);
                Dimension d = plattformHolder.getPreferredSize();
                d.setSize(d.getWidth(), (d.getHeight() + 105));
                plattformHolder.setPreferredSize(d);
            }
        }
    }