[jQuery] validate plugin step by step form

[adexcube]

Hi, I'm creating a step by step form using jquery ui tabs and
validation plugin, the problem is that I've got just one form ( and I
have to ) so on first step the form is validated but all errors an
others steps are displayed.
I'm using an approach of http://jquery.bassistance.de/validate/demo/multipart/
but I've got specific messages and validations.

Something like

var v=$("#saverForm").validate(
        {
                debug: true,
                focusCleanup : false,

                rules: {
                                "signupDetails.hasUnderstoodDeclaration" : 
"required",
                                applicantType: "required",
                                title: "required",
},
                messages:{
                                "signupDetails.hasUnderstoodDeclaration" : 
"Please accept The
terms and conditions",
                                applicantType: "Please select an option.",
                                title:          "Please choose your title.",
                                firstname:      "Please enter your first name.",
                                lastname:       "Please enter your surname.",
});

and a lot more fields.

Is there any way I can add rules an messages to the form rather than
add them to the fields??

or can I create different form.validate() variables and then call them
depending oin which step am I?
something like

v[0] =$("#saverForm").validate( ....some set of 2 rules for example )
v[1] =$("#saverForm").validate( ....some set of 10 rules for example
different than above)


Many thanks