update for select all feature for cart. code review by LZF

@@ -174,7 +174,9 @@ function requestUpdateAllGoodsCheckStatus(theGoods, successHandeler) {
     $.ajax({
         url: 'select',
         type: 'post',
-        data: {'skuList': JSON.stringify(theGoods)},
+        data: {
+            skuList: JSON.stringify(theGoods)
+        },
         success: function(res) {
             if (res.code === 200) {
                 successHandeler();
@@ -230,7 +232,7 @@ function bottomCheckBoxHandeler(isSelected, type, handlerAfterTouch) {
     }
 
     goodInfo.goods_type = type;
-    goodInfo.selected = isSelected ? 'Y': 'N';
+    goodInfo.selected = isSelected ? 'Y' : 'N';
 
     $goods.each(function(idx, good) {
         $good = $(good);
@@ -245,6 +247,7 @@ function bottomCheckBoxHandeler(isSelected, type, handlerAfterTouch) {
     requestUpdateAllGoodsCheckStatus(goodsList, handlerAfterTouch);
 }
 
+//获取当前购物车类型
 function getCartType() {
     var $navItem = $('.cart-nav ').find('li'),
         type = 'ordinary';
@@ -258,6 +261,7 @@ function getCartType() {
     return type;
 }
 
+//是否要全选
 function willBeSelected() {
     var isSelected = true;
     var $this = $(this);
@@ -271,20 +275,8 @@ function willBeSelected() {
     return isSelected;
 }
 
-
-
-
-//全选按钮
+//全选按钮点击事件
 $selectAllBtn.on('touchend', function() {
-   // var $this = $(this);
-
-
-   // if ($this.hasClass('icon-cb-checked')) {
-   //     $this.removeClass('icon-cb-checked').addClass('icon-checkbox');
-   // } else {
-   //     $this.removeClass('icon-checkbox').addClass('icon-cb-checked');
-   // }
-
     bottomCheckBoxHandeler(willBeSelected(), getCartType(), didUpdateAllGoodsCheckStatus);
 });