[jQuery] [validate]

[koszu]

I'm using jquery validate plugin and I have a problem with rules
depending of form selectors.
In my form I have got two form selectors:


<select name="client.clientType" id="type" class="iefixmargin"><option
value="">-- Wybierz --</option>
                                <option value="B">Bezrobotny</option>
                                <option value="N">Nieaktywny zawodowo</option>
                                <option value="Z">Zatrudniony</option>
                                <option value="I">Inny</option>
                                <option value="P">Przedsiebiorstwo</option>
                                <option 
value="S">Samozatrudnony</option></select>

and

<input name="clientnip" id="clientnip" maxlength="14" value=""
class="tekst" type="text">

I'd like to make "clientnip" required if  "type" value is "P" or "S".
I tried this:

  $("#clientnip").rules("add", {
 required: function(element) {
        return $("#type").val() == "P";
        return $("#type").val() == "S";
              }

It works for type value = "P" and ignore "S".

Could some one help me?