To Change These two images

To Do

1. Click and drag the three image files to your desktop
2. Open TextWrangler and create a simple HTML file on your desktop with the three colored images at the top and two blue images at the bottom.
3. Check to make sure that file works by opening the file in your browser. There's no need to upload to Puma. You only need to reload your browser window as you fix bugs.
4. Add the event handler code for the image swap behavior.
5. Check the browser to see if the image swap works. Again, you only need to reload your browser window as you fix bugs.