init scoll

@@ -117,10 +117,6 @@ function toggleAll(obj, roleType) {
 
 cartScroll = {
     init: function() {
-        if (!$cartListWrap.find('.cart-fixed-submit').length) {
-            return;
-        }
-
         this.$listWrap = $cartListWrap;
         this.$win = $(window);
 
@@ -138,6 +134,11 @@ cartScroll = {
     resetFixedWrapInfo: function() {
         var $fixedWrap = this.$listWrap.find('.cart-fixed-submit');
 
+        if (!$fixedWrap.length) {
+            this.fh = 0;
+            return;
+        }
+
         this.fh = $fixedWrap.height() + $fixedWrap.offset().top;
         this.onScroll();
     },