import java.awt.*;
import java.awt.event.*;

public class TimePanel extends Panel implements Runnable {
    int msec;
    double percent;

    public TimePanel(int msec) {
        super();

        this.msec = msec;

        new Thread(this).start();
    }

    public void run() {
        long stop = System.currentTimeMillis() + msec;
        while (stop > System.currentTimeMillis()) {
            try {
                Thread.sleep(10);
            } catch (InterruptedException ie) { }
            percent = 1.0 - (stop - System.currentTimeMillis()) /
(double)msec;
            repaint();
        }
        percent = 0.0;
        repaint();
        new Thread(this).start();
    }

    public void update(Graphics g) {
        paint(g);
    }

    public void paint(Graphics g) {
        if (percent == 0.0) {
            g.setColor(Color.WHITE);
            g.fillRect(0,0,getWidth(),getHeight());
        }

        g.setColor(Color.BLUE);
        int width = (int)(getWidth() * percent);
        g.fillRect(0,0,width,getHeight());

        String str = Integer.toString(msec) + " msec";
        FontMetrics fm = g.getFontMetrics();
        int strWidth = fm.stringWidth(str);
        g.setColor(Color.WHITE);
        g.drawString(str,(getWidth() - strWidth)/2,
         (getHeight() + fm.getHeight() / 2) / 2);
    }

    public static void main(String[] args) {
        Frame f = new Frame();
        f.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent we) {
                System.exit(0);
            }
        });
        TimePanel tp = new TimePanel(10000);
        f.add(tp);
        f.setSize(120,80);
        f.setVisible(true);
    }
}

/*
With an immense help from guru camickr as shown on:
http://forum.java.sun.com/thread.jspa?messageID=4472998
*/
import javax.swing.*;
import javax.swing.table.*;
import java.awt.*;
import java.awt.event.*;

public class AnimeTableCell{
 JFrame frame;
 Container con;
 JScrollPane scp;
 JTable table;
 AnimePanel anp, ant;
 Image[] images;

 public AnimeTableCell(){
   frame = new JFrame();
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   con = frame.getContentPane();

   images = new Image[4];
   images[0] = new ImageIcon("images/a.png").getImage();
   images[1] = new ImageIcon("images/b.png").getImage();
   images[2] = new ImageIcon("images/c.png").getImage();
   images[3] = new ImageIcon("images/d.png").getImage();

   table = new JTable(10, 6){
     public Component prepareRenderer
      (TableCellRenderer renderer, int row, int column){
       Component c = super.prepareRenderer(renderer, row, column);
       if (row == 3 && column == 2){
         if (ant != null){
           c = ant;
         }
       }
       return c;
     }
   };
   scp = new JScrollPane(table);
   con.add(scp, BorderLayout.CENTER);
   ant = new AnimePanel(images, 500, true); //for cell renderer,
repaint table

   anp = new AnimePanel(images, 500, false); //this doesn't repaint
table
   con.add(anp, BorderLayout.SOUTH);

   frame.setSize(400, 400);
   frame.setVisible(true);
 }

 class AnimePanel extends JPanel implements ActionListener{
   Image[] imgs;
   int delay;
   boolean trepaint;
   int range;
   int idx;
   Timer timer;
   AbstractTableModel atb;

   public AnimePanel(Image[] ima, int de, boolean r){
     setPreferredSize
       (new Dimension(ima[0].getWidth(this), ima[0].getHeight(this)));
     imgs = ima;
     delay = de;
     trepaint = r;

     range = ima.length - 1;
     idx = 0;
     atb = (AbstractTableModel)(table.getModel());
     timer = new Timer(delay, this);
     timer.start();
   }

   public void actionPerformed(ActionEvent e){
     ++idx;
     if (idx > range){
       idx = 0;
     }
     repaint();
     if (table != null && trepaint){
       atb.fireTableCellUpdated(3, 2);
     }
   }

   public void paintComponent(Graphics g){
     super.paintComponent(g);
     g.drawImage(imgs[idx], 0, 0, this);
   }
 }

 public static void main(String[] args){
   new AnimeTableCell();
 }
}

"..and now for something completely different"
(to the fine answers, already presented)

<http://java.sun.com/j2se/1.5.0/docs/api/javax/swing/JProgressBar.html>

Andrew T.

This question has nothing whatever to do with Java; you would be better
asking it in a JavaScript group.

Java and JavaScript are completely different languages. The confusion of
names arises out of an incredibly stupid marketing decision.