import java.applet.*;
import java.awt.*;

public class TwoPages extends Applet {

Panel[] panel;
Button[] button;
Label[] label;
static final int number = 6; 

public void init() 
{
	panel = new Panel[number];
	button = new Button[number];
	label = new Label[number];
	for (int i=0; i<number; i++)
	{
		panel[i] = new Panel();
		panel[i].setLayout(new BorderLayout());
		button[i] = new Button(getPlace(i));
		panel[i].add(getPlace(i), button[i]);
		label[i] = new Label("Panel " + String.valueOf(i+1));
		panel[i].add(BorderLayout.CENTER, label[i]);
	}
	add(panel[0]);
}

String getPlace(int index)
{
	switch(index%4)
	{
		case 0: return(BorderLayout.EAST); 
		case 1: return(BorderLayout.NORTH); 
		case 2: return(BorderLayout.SOUTH); 
		default: return(BorderLayout.WEST);
	}
}

public boolean action(Event evt, Object obj)
{
	for (int i=0; i<number; i++)
	{
		if (evt.target == button[i])
		{
			remove(panel[i]);
			if (i<(number - 1)) 
			{
				add(panel[i+1]);
				panel[i+1].invalidate();
			}
			else 
			{
				add(panel[0]);
				panel[0].invalidate();
			}
			validate();
			return true;
		}
	}
	return super.action(evt, obj);
}
}  // END OF Class TwoPages