The faqs won't exactly have the answer to your specific question. They have some faqs on working with check boxes and some on select lists. You need to combine both examples/scripts to get your desired results. It will be harder to find a faq or a page that solves exactly your problem than it is to find examples that address the broader topics covered in your problem. I doubt someone wrote a working example of "how to populate select list options from check boxes". When you do any type of research you need to find a few sources that cover your topic. Take for example a specific species of fish. Most libraries won't have a book exactly on your fish species but will carry books on fish in general and maybe some books that cover all fish belonging to the same family. It is mostly up to you to research the solution. So while your exact question may not be answered, the topics are covered both here and in Google searches. Figure out how to get the values from a group of check boxes and how to populate a select list, get some kind of code and if you can't figure out exactly how to piece it together, I'm sure most of the regular posters will happy to help.