roll back to the origin

@@ -168,4 +168,30 @@ $('.btn-balance').on('touchend', function() {
     window.location.href = '/shoppingCart/orderEnsure?cartType=' + 'ordinary';
 });
 
+$('.down').on('touchend', function() {
+    chosePanel.show();
+});
+$('.cut').on('touchend', function() {
+    var id = $(this).closest('.shopping-cart-good').data('id');
+
+    $.ajax({
+            type: 'GET',
+            url: '/shoppingCart/modify',
+            data: {
+                old_product_sku: id,
+                new_product_sku: id,
+                buy_number: '0',
+                selected: 'Y'
+            },
+            success: function(data) {
+                if (data.code === 200) {
+                    window.history.go(0);
+                }
+            },
+            error: function() {
+                tip.show('网络错误');
+            }
+        });
+
+});