ding').addClass('ui-state-error');
                $('#width-padding').siblings('.error-msg').append('<div>Width padding is required and must be a numerical value for a Sandwich case so there is space to put the mount holes.</div>');
                error_els.push('#width-padding');
                has_error = true;
              } else {
                if ($('#width-padding-toggle').is(':checked')) {
                  data['width-padding'] = w_pad;
                }
              }

              if (!$('