stumped on mailing a complete page

This question may have been asked a million times, but I have had no luck searching for a difinitive answer. I want to send a confirmation email upon receiving an order, and would like to send the page that I display on the browser to the user. I can not figure out how to send a page, like the links that let you mail a page to a friend on some sites. Any help would be much appreciated. Thanks, Brett