Well, wasn't that very impressive? That was accomplished simply by writing the link thusly:

<a href="content2.html" target="content">open page 2</a>

Where content was the name given to the right frame.

To see the frameset code for this layout, click View > Source in your browser. To see the source code of the pages contained in the frameset, you have to right-click them and select View Source.

Click here to re-open the first page (or just press Back in your browser).