My shopping cart has a drop-down menu that has, say, sizes. The top of the list is a valueless option with the title "--choose size--"
BUT, if someone just hits "Add to Cart," and doesn't enter a size, then the shopping process proceeds as usual. There are no validation rules that can be applied. Of course, I did apply a basic validation.js validation rule, and it comes up "Please assign a size," but after hitting "ok" the modal window still pops up and the customer can continue without ever making a change to the size.
What can I do to ensure a variable is selected before completing the process?
Thanks in advance,