Validation Issue

Validation Issue

I have about 10 fields on a form and I would like to validate not one required field but 3. Meaning one of 3 fields has to be entered in order for the form to be valid.

Example:

<input id='SemiRequiredField1'></input>
<input id='SemiRequiredField2'></input>
<input id='SemiRequiredField3'></input>

The form is valid if one of 3 semirequiredFields in entered.

How do I do this?

I now use the following method for validation:
$("#vehicleDetailsForm").validate({
    rules: {
       Make: { required: true },
       Model: { required: true },
       Version: { required: true },
    },             errorLabelContainer: '#ErrorContainer',
    messages: {
       Make: "Please enter a make",
       Model: "Please enter a model",
       Version: "Please enter a version"
    }
});