Validation : Multiple fields validation

Validation : Multiple fields validation

Hello
I have to create a validation on 5 fields.
The user have  :
date
hour
minutes
am/pm
and timezone

I have to check if the generated date is in the futur or not.

I see one solution, to create a hidden field and to update it with a full date value at each changes, but it's kind of a hack, so I would like to know if there is something nicer in Jquery validation plugin.

I already have the function to do that, I just need to find thee way to apply it to multiple fields.

Thanks