Image switching with `<a>`

This program shows how to switch an image using the <a> tag.

Programming Issues

This example is identical to our previous example except that instead of calling the function via the onclick event, we call it by specifying it as the target in the <a> tag enclosing the image in the HTML document, like so: <a href="javascript:changeImage()">. In this way we can see how we can call JavaScript functions directly from the href attribute of the <a> HTML tag.

Note: for simplicity, this example does not use image pre-caching.