It would take a long time and send a lot of e-mail to me to show you what this script does, so I'll just tell you and you can try it out for yourself. This script creates a verification page when someone uses your simple mailto: guestbook. (See my Guestbook Tutorial.)
First off, Grab the Script, place it between the HEAD commands on your page, then in the BODY command of the page, add this:
Then give it a whirl and happy guestbooking!
Please note: This script is being offered in simple text format. When you click to Grab the Script, the text should display. Internet Explorer and AOL users may get a blank page or the script may run and produce the effect. If this happens, choose SAVE AS from the FILE menu and save the blank or compiled page.