Validate one of three
There is probably a simple way to do this but I can't figure it out. here is the challenge, I have three form fields (a) for a cell number (b) for a day phone number and (c) for a evening phone number. Only one needs to be present when the visitor clicks on the submit button. how do I get only one validated, it can be any of the three or all three or two but at least one of the elements need to filled out.
thanks for any help