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

public class PopUpFrame extends Applet {
  Color backcolor = Color.magenta;
  NewFrame myframe;
  Canvas justcolor = new Canvas();
  Button getframe = new Button("Get Control Frame");
  
  
  public void init() {
    setLayout(new BorderLayout());
    myframe = new NewFrame(this);
    add("South",getframe);
    justcolor.setBackground(backcolor);
    add("Center",justcolor);
  }
  
  void changecolor(String newcolor) {
    if (newcolor.equals("blue")) justcolor.setBackground(Color.blue);
    else  if (newcolor.equals("cyan")) justcolor.setBackground(Color.cyan);
    else  if (newcolor.equals("back")) justcolor.setBackground(backcolor);

  }
  
  public boolean action(Event evt, Object arg) {
    if (evt.target instanceof Button)
      myframe.show();
    return true;
  }
}

class NewFrame extends Frame {
  Button closewindow = new Button("Quit");
  Button bluebutton = new Button("Change to Blue");
  Button cyanbutton = new Button("Change to Cyan");
  PopUpFrame outerparent;
  
  NewFrame(PopUpFrame parent) { 
    outerparent = parent;
    setTitle("Change Color");
    resize(300,300);
    setLayout(new GridLayout(3,1,2,2));
    add(bluebutton);
    add(cyanbutton);
    add(closewindow);
  }
  
  public boolean action (Event evt, Object arg) {
    if (evt.target instanceof Button) {
      if(evt.target == bluebutton) outerparent.changecolor("blue");
      if(evt.target == cyanbutton) outerparent.changecolor("cyan");
      if(evt.target == closewindow) 
	     { hide(); outerparent.changecolor("back");}
    }
    return true;
  }
}