General application of JQuery Validate

JQuery Validation

/* Method for validating Zip Code */
/* Requires Jquery-latest and Jquery-Validation plugin (http://docs.jquery.com/Plugins/Validation) */

$.validator.addMethod('client_zip_cb', 
    function(value){    
       /* Apply validation code */  
       return value == '99999'   
    }, 
    'Please enter 99999 for the zip code!'
);


$('#newClientForm').validate({
 
        /* debug : true, */
      submitHandler : function(form){
    
/* 
Because checking for a unique email is an ajax action, I applied it after the form has validated successfully.  This could, however, be used called with the blur event of the input element, to notify that the email is not unique. 
*/ 
          email = $('input[name="client_email"]');
        $.ajax({ url : '/email_exists', data : { email : email } , response : function(r){ 
                alert(r); 
                if(r.unique == 'true'){ 
                    /* Finish the submission of the form */
                } else { 
                    /* notify the user of the error */
                } 
            } 
        });
      }
      , invalidHandler : function(e, validator){
          var errors = validator.numberOfInvalids();
          if(errors){
            var message = "You missed " + errors + " field"
            + (errors == 1 ? "" : "s");
 
            $('#notify').html('<li>' + message + '</li>').show();


          } else {
            $('#notify').hide();
          }

       }
        /* , ignore : 'input' */
   , rules : {
          client_zip : "client_zip_cb"
   }
 
});