How do I make an 'email this page' feature?

Hi. I am on a tight deadline here- I am trying to get a feature on a website I am creating where you click a link on a page which says 'email this page' and it takes you to a new page with a form asking you to enter your name, email and an email address and name of a person you would like to email the link of the page together with a message. In theory this is easy to do- but what would be the best and secure way of doing it? I thought by clicking the link this would be a form sending the url of the page to the next page and so I could then use $_GET to retrieve this. I also thought of using $_SERVER and getting the referer web address. Then I could use this in a hidden field and use the mail() function to mail it off. Aren't both these options open to abuse? I was impressed with a feature I saw on this website- http://www.chesternovello.com/composer/606/main.html - at the bottom of the page when you click on Email this page it takes you to another page without using a form, and it seems to use just html. How do they do that? I would really like to use a nice PHP script to do this. Any ideas? Would be grateful for any thoughts. I. Gray