For most of the inputs I am successfully using Class specifications for the required validation.

One page is for entering the information for up to two team members, and I want to make the second team member's information optional.  From what I read I should be able to use something like:

   class=   " required: #checkbox:checked"

But, I need to make the requirement to be based on another field having text entered.

I can't find any reference to this.

Has anyone got a solution?

Thanks