Do you have more than one browser? If so, open each page in a different browser and set one to "Work Offline" mode and leave the other online :)

If you only have one browser, you can download a new one. Some ideas:

Firefox
Opera
Google Chrome
Netscape

There might be a way to do it in one browser... but it would depend on what browser you're using. But really, I'm not sure how/if it can be done. And it would be a lot easier to just use two different browsers, anyway :)

I'd be the last person on this site that could help you with this query, Debs and you do know that already,lol!
But maybe if you post this question in the Computer fan club (like obby suggested) you might get someone who could help you.
http://www.fanpop.com/spots/computers
OR
http://www.fanpop.com/spots/programming