code review by fei.hong: do merge yang.yang and shaofeng.zhou fixes bugs codes

@@ -299,8 +299,6 @@ class AbstractAction extends Controller_Abstract
     {
         if ($this->_useSession) {
             Session::start('yohobuy_session', null, 'yohobuy.com')->__set($name, $value);
-        } else {
-            Session::fileStart('yohobuy_session')->__set($name, $value);
         }
     }
 
@@ -315,7 +313,7 @@ class AbstractAction extends Controller_Abstract
         if ($this->_useSession) {
             return Session::start('yohobuy_session', null, 'yohobuy.com')->__get($name);
         } else {
-            return Session::fileStart('yohobuy_session')->__get($name);
+            return '';
         }
     }
 
@@ -431,10 +429,10 @@ class AbstractAction extends Controller_Abstract
      * 
      * @param string $title  头部标题
      * @param mixed $backUrl  返回的链接
-     * @param string $homeUrl 返回首页的链接
+     * @param boolean $navBtn 是否显示右上角导航
      * @return void
      */
-    protected function setNavHeader($title = '', $backUrl = true, $homeUrl = '/', $navBtn = false)
+    protected function setNavHeader($title = '', $backUrl = true, $navBtn = true)
     {
         $header = array();
 
@@ -452,11 +450,16 @@ class AbstractAction extends Controller_Abstract
         if (!empty($title)) {
             $header['navTitle'] = $title;
         }
-        if (!empty($homeUrl)) {
+        /*if (!empty($homeUrl)) {
             $header['navHome'] = $homeUrl . '?go=1&t=' . time();
-        }
+        }*/
         if ($navBtn) {
-            $header['navBtn'] = $navBtn;
+            $header['navBtn'] = array(
+                'indexUrl' => Helpers::url('/?go=1'), //首页
+                'categoryUrl' => Helpers::url('/cate'), // 分类
+                'shoppingCartUrl' => Helpers::url('/cart/index/index'), // 购物车
+                'mineUrl' => Helpers::url('/home'), // 我的
+            );
         }
 
         // 默认使用男生的头部