code: function() {
  			if ( $.fn.resetForm ) {
  				$(this.currentForm).resetForm();
  			}
  			this.submitted = {};
  			this.lastElement = null;
  			this.prepareForm();
  			this.hideErrors();
  			this.elements().removeClass( this.settings.errorClass ).removeData( "previousValue" );
  		}
docs: http://docs.jquery.com/Plugins/Validation/Validator/resetForm