Merge branch 'develop' of http://git.dev.yoho.cn/web/yohobuy into develop

@@ -8,7 +8,8 @@ var $ = require('yoho.zepto'),
     Swiper = require('yoho.iswiper'),
     lazyLoad = require('yoho.zeptolazyload');
 
-var swiper;
+var swiper,
+    $brandList = $('.brand-list');
 
 swiper = new Swiper('.swiper-container', {
     lazyLoading: true,
@@ -22,4 +23,27 @@ $('.yoho-header').css({
     'z-index': 2,
     position: 'fixed'
 });
-$('.banner-top').css('padding-top', '90px');
\ No newline at end of file
+$('.banner-top').css('padding-top', '90px');
+
+if ($brandList.length > 0) {
+    $(window).scroll(function() {
+        var scrTop = $(window).scrollTop(),
+            searchH = $('.newbrand-search').height(),
+            headerH = $('.yoho-header').height(),
+            brandSwipe = parseInt(searchH) + parseInt(headerH);
+
+        $('.brand-list').each(function() {
+            var offTop = $(this).offset().top - brandSwipe;
+
+            if (scrTop >= offTop) {
+                $brandList.find('.title-bar').css('position', 'static');
+                $(this).find('.title-bar').css({
+                    position: 'fixed',
+                    top: brandSwipe
+                });
+            } else {
+                $(this).find('.title-bar').css('position', 'static');
+            }
+        });
+    });
+}