code review by fei.hong: fixes bug to www redirect url

@@ -75,6 +75,9 @@ class Mobile
         if ($uri === '/woman') {
             $uri = '/girls';
         }
+        if ($host === 'www.yohobuy.com') {
+            $url = 'm.yohobuy.com' . $uri;
+        }
         
         $url = strtr($host, array('.yohobuy.com' => '.m.yohobuy.com')) . $uri;