public class FiveChess extends BaseWindow{
	private Listener listener;
	private Canvas canvas;
	private Rectangle clickArea;
	private static int N=20;
	private static int DIV=15;
	private Rectangle[][] rect=new Rectangle[N][N];
	private String[][] flags=new String[N][N];
	private boolean[][] dirty=new boolean[N][N];
	private GC gc;
	private int hot_i,hot_j;
	private boolean flag=true;
	/**
	 * listener is use to action in draw
                                    
                                    
                                        
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