Minishop2: переключение вариантов доставки

initialize: function() {
			miniShop2.Order.setup();
			if ($(miniShop2.Order.order).length) {
				miniShop2.$doc
					.on('click', miniShop2.Order.order + ' [name="' + miniShop2.actionName + '"][value="order/clean"]', function(e) {
						miniShop2.Order.clean();
						e.preventDefault();
					})
					.on('change', miniShop2.Order.order + ' input, textarea', function(e) {
						var $this = $(this);
						var key = $this.attr('name');
						var value = $this.val();
						miniShop2.Order.add(key, value);
					});
				var $deliveryInputChecked = $(miniShop2.Order.deliveryInput + ':checked', miniShop2.Order.order);
				$deliveryInputChecked.trigger('change');
				miniShop2.Order.updatePayments($deliveryInputChecked.data('payments'));
			}
		}

if ($this.is(miniShop2.Order.deliveryInput)) {
	miniShop2.Order.getRequired(value);
}

add: function(key, value) {
			var callbacks = miniShop2.Order.callbacks;
			var old_value = value;
			callbacks.add.response.success = function(response) {
				(function(key, value, old_value) {
					var $field = $('[name="' + key + '"]', miniShop2.Order.order);
					switch (key) {
						case 'delivery':
							$field = $(miniShop2.Order.deliveryInputUniquePrefix + response.data[key]);
							if (response.data[key] != old_value) {
								$field.trigger('click');
							}
							else {
                                                                miniShop2.Order.getRequired(value);
								miniShop2.Order.updatePayments($field.data('payments'));
								miniShop2.Order.getcost();
							}
							break;
						case 'payment':
							$field = $(miniShop2.Order.paymentInputUniquePrefix + response.data[key]);
							if (response.data[key] != old_value) {
								$field.trigger('click');
							}
							else {
								miniShop2.Order.getcost();
							}
							break;
						//default:
					}
					$field.val(response.data[key]).removeClass('error').closest(miniShop2.Order.inputParent).removeClass('error');
				})(key, value, old_value);
			}
			callbacks.add.response.error = function(response) {
				(function(key) {
					var $field = $('[name="' + key + '"]', miniShop2.Order.order);
					if ($field.attr('type') == 'checkbox' || $field.attr('type') == 'radio') {
						$field.closest(miniShop2.Order.inputParent).addClass('error');
					}
					else {
						$field.addClass('error');
					}
				})(key);
			}

			var data = {
				key: key,
				value: value
			};
			data[miniShop2.actionName] = 'order/add';
			miniShop2.send(data, miniShop2.Order.callbacks.add, miniShop2.Callbacks.Order.add);
		}

miniShop2.Order.getRequired(value);