修正点击区块没反应的bug

@@ -13,18 +13,26 @@ exports.init = function() {
         var container = $('.article-type-three'),
             thumbContainer = container.find('.thumb-container'),
             prodList = container.find('.prod-list'),
-            curItem, prevItem;
+            curItem, //当前focus搭配项
+            prevItem, //上一次focus的搭配项
+            curList, //当前focus搭配项对应推荐列表
+            prevList; //上一次focus的搭配项对应的列表
 
         //点击分类，显示分类下推荐商品列表
         thumbContainer.delegate('li', 'click', function() {
-            var index = $(this).index();
-
-            curItem = prodList.find('.prod:eq(' + index + ')').removeClass('hide');
+            var index;
+            curItem = $(this).addClass('focus');
+            index = curItem.index();
             if (prevItem) {
-                prevItem.addClass('hide');
-            } else {
-                prevItem = curItem;
+                prevItem.removeClass('focus');
+            }
+            prevItem = curItem;
+
+            curList = prodList.find('.prod:eq(' + index + ')').removeClass('hide');
+            if (prevList) {
+                prevList.addClass('hide');
             }
+            prevList = curList;
         });
 
         //默认选中第一个
@@ -33,7 +41,8 @@ exports.init = function() {
         //scroll时控制列表的位置
         $(document).scroll(function() {
             var sTop = $(this).scrollTop(),
-                cur, parent;
+                cur,
+                parent;
             thumbContainer.each(function() {
                 var pNode = $(this).parent('.article-type-three');
                 if (sTop > pNode.offset().top) {