I have a form that is built into a table (like most forms are) and I want to hide a few of the form fields (or table rows) based on the option selected from a small grouping of radio buttons. For example, say it's a registration form. If the radio buttons give the user an option for number of registrants, based on their input there will be corresponding fields shown later in the form. If their selection is "2", then there will be two "name" fields, etc. Hopefully this description didn't over complicate. Basically I just want to hide a <div> based on one selection and restore it based on the other. Only two total options. This is probably pretty easy for a savvy AJAX expert, but I'm just learning it. Thanks in advance.