need to require that at least one of 9 checkboxes be checked

I have a form that has a save button in it. I also have 10 checkboxes that I need to require the user to check at least one of them, then another set of 6 checkboxes that I need the user to check at least one of them. Is there a way to have a message pop up when the user tries to save the record without having made a selection in both of these areas?