private void moveListElement(int increment)
    {
        Object mover = jListLocations.getSelectedValue();
        int oldIndex = jListLocations.getSelectedIndex();
        int newIndex = oldIndex + increment;
        if(oldIndex < 0 || newIndex > jListLocations.getModel().getSize() - 1)
            return;
        if(newIndex < 0 || newIndex > jListLocations.getModel().getSize() - 1)
            return;

        list.removeElementAt(oldIndex);
        list.insertElementAt(mover, oldIndex + increment);
        jListLocations.setSelectedIndex(newIndex);
    }