Tonegod gui background slider

Because lack of example, I don’t know how to create a background map with a slider that can switch the vertical or horizontal position of the map
Could anyone tell me how to do it? many thanks
[java]package mygame;

import com.jme3.app.SimpleApplication;
import com.jme3.math.Vector2f;
import com.jme3.math.Vector4f;
import com.jme3.system.AppSettings;
import tonegod.gui.controls.lists.Slider;
import tonegod.gui.controls.windows.Window;
import tonegod.gui.core.Screen;

public class Main extends SimpleApplication {

@Override
public void simpleInitApp() {
    flyCam.setDragToRotate(true);
    Screen screen = new Screen(this);
    Window window = new Window(screen, "win", new Vector2f(15, 15), new Vector2f(2560, 2400),
            new Vector4f(14, 14, 14, 14),
            "Images/background.jpg");
    guiNode.addControl(screen);
    Slider slider1 = new Slider(
            screen,
            "SomeID",
            new Vector2f(0, 0), new Vector2f(screen.getWidth(), 15),
            Slider.Orientation.HORIZONTAL,
            true) {
        @Override
        public void onChange(int selectedIndex, Object value) {
            float percent = (((float) (Integer) value) / 100);

        }
    };
    screen.addElement(slider1);
    screen.addElement(window);
}

public static void main(String[] args) {
    AppSettings settings = new AppSettings(true);
    Main app = new Main();
    app.setDisplayStatView(false);
    app.setShowSettings(false);
    app.setDisplayFps(false);
    app.setSettings(settings);
    app.start();
}

}[/java]

note: tonegodGUI does have its own forum group: http://hub.jmonkeyengine.org/groups/tonegodgui/

I’m sure anyone could help reads both places just thought you should know for the future.