How can I get the background image of my website to cycle on a timer?

I'm afraid my experience with Javascript (Which I'm certain this will require) is fairly limited and I'm still quite new to Dreamweaver, so I'm posing this question to you guys.
I'd like the background image of my website to change every five minutes or so, however I'm unsure of how to accomplish this. For those of you with Windows 7, you can set the background of your desktop to cycle through a folder of images every ten minutes or so. I'd like something similar for this website.
Thanks in advance.

Supersized can do this for you with very less need for code.
http://www.buildinternet.com/project/supersized/ - Take a look at their demo. It's also a lightweight plug-in and it has a lot of great effects you could use. Also x-browser friendly.

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Why PhotoBooth can get the background images to work properly on the picture, is it because too much luminosity in the environment or too little? I have tried everything and nothing works.
<Re-Titled By Host>

Might try this...
Go to System Preferences > Universal Access and down in the Display: section make sure that the Enhance contrast: slider is all the way to left to Normal, or more to the right for less Contrast.
Go to System Preferences > Accessibility in 10.8.x,and down in the Display: section make sure that the Enhance contrast: slider is all the way to left to Normal, or more to the right for less Contrast.

How can I get the part image from a rectangle region?

hi,
I'm trying to draw a rectagle region on a picture with mouse and crop it. but the rectangle is not vertical along x-axis.that is to say, there is a angle between x-axis and the base of the rectangle. I don't know , how can I do it. Can someone give me some tip or some java-code. Thank you very much in advance.

I completely misunderstood your question. As I read it again it seems clear and straight-forward. I'm sorry. Let's see if this is closer.
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.awt.image.BufferedImage;
import java.io.*;
import java.net.*;
import javax.imageio.ImageIO;
import javax.swing.*;
import javax.swing.event.MouseInputAdapter;
public class CropImage
    BufferedImage original;
    CropPanel cropPanel;
    CropSelector selector;
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        original = getImage();
        cropPanel = new CropPanel(original);
        selector = new CropSelector(cropPanel);
        cropPanel.addMouseListener(selector);
        cropPanel.addMouseMotionListener(selector);
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        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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        f.getContentPane().add(new JScrollPane(cropPanel));
        f.setSize(400,400);
        f.setLocation(200,200);
        f.setVisible(true);
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        String fileName = "images/coyote.jpg";
        BufferedImage image = null;
        try
            URL url = getClass().getResource(fileName);
            image = ImageIO.read(url);
        catch(MalformedURLException mue)
            System.err.println("url: " + mue.getMessage());
        catch(IOException ioe)
            System.err.println("read: " + ioe.getMessage());
        return image;
    private JPanel getUIPanel()
        final JButton
            mask    = new JButton("mask"),
            crop    = new JButton("crop"),
            restore = new JButton("restore");
        ActionListener l = new ActionListener()
            public void actionPerformed(ActionEvent e)
                JButton button = (JButton)e.getSource();
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                    selector.mask();
                if(button == crop)
                    selector.crop();
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                    cropPanel.restore(original);
        mask.addActionListener(l);
        crop.addActionListener(l);
        restore.addActionListener(l);
        JPanel panel = new JPanel();
        panel.add(mask);
        panel.add(crop);
        panel.add(restore);
        return panel;
    public static void main(String[] args)
        new CropImage();
class CropPanel extends JPanel
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    Dimension size;
    GeneralPath clip;
    Point[] corners;
    Area mask;
    boolean showMask;
    Color bgColor;
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        image = bi;
        setSize();
        clip = new GeneralPath();
        showMask = false;
        bgColor = getBackground();
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        super.paintComponent(g);
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        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                            RenderingHints.VALUE_ANTIALIAS_ON);
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        int h = getHeight();
        int x = (w - size.width)/2;
        int y = (h - size.height)/2;
        g2.drawImage(image, x, y, this);
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            g2.setPaint(getBackground());
            g2.fill(mask);
        else
            g2.setPaint(Color.red);
            g2.draw(clip);
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        return size;
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        corners = p;
        clip.reset();
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        clip.lineTo(p[2].x, p[2].y);
        clip.lineTo(p[3].x, p[3].y);
        clip.closePath();
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        clip.reset();
        repaint();
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        repaint();
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        this.image = image;
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        int h = p[1].y - p[3].y;
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        cropPanel.setImage(cropped);
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            cropPanel.clearClip();
        start = e.getPoint();
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        end = e.getPoint();
        // locate high and low points of rectangle from start
        int dy = end.y - start.y;
        int dx = end.x - start.x;
        double theta = Math.atan2(dy, dx);
        double spoke = start.distance(end)/2;
        double side = Math.sqrt(spoke*spoke + spoke*spoke);
        Point[] corners = new Point[4];           // counter-clockwise
        corners[0] = start;                       // left
        int x = (int)(start.x + side * Math.cos(theta + Math.PI/4));
        int y = (int)(start.y + side * Math.sin(theta + Math.PI/4));
        corners[1] = new Point(x, y);             // bottom
        corners[2] = end;                         // right
        x = (int)(start.x + side * Math.cos(theta - Math.PI/4));
        y = (int)(start.y + side * Math.sin(theta - Math.PI/4));
        corners[3] = new Point(x, y);             // top
        cropPanel.setClip(corners);
}

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twenty_one wrote:
JJMack wrote:
If I were stuck in an area that only had low speed Internet connections I would not use the web as much as I do.
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You're welcome, and thank you for the reply.
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How can I get the background image of my website to cycle on a timer?

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