How to add images to the grid view and adding click function to these images?

public final class gridFieldDemoScreen extends MainScreen
{
	LabelField one, two, three, four, five, six;
	public gridFieldDemoScreen()
    {
        setTitle("gridFieldDemo");   
        GridFieldManager grid = new GridFieldManager(2, 3, 0);
        one = new LabelField("ONE");
        grid.insert(one, 0);
        two = new LabelField("TWO");
        grid.insert(two , 1);
        three = new LabelField("THREE");
        grid.insert(three, 2);
        four = new LabelField("FOUR");
        grid.insert(four, 3);
        five = new LabelField("FIVE");
        grid.insert(five, 4);
        six = new LabelField("SIX");
        grid.insert(six, 5);
        grid.setColumnPadding(20);
        grid.setRowPadding(20);
        add(grid);
    }
}