diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 68f49e3b..494b497e 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -128,8 +128,8 @@ class ApplicationController < ActionController::Base
     # set site if exist or create site
     @site = Site.first || Site.create({:valid_locales => [], :in_use_locales => []})
     session[:site] = @site.id
-    @site_in_use_locales = @site.in_use_locales
-    @site_valid_locales = @site.valid_locales
+    @site_in_use_locales = site_locales_default_head(@site.in_use_locales)
+    @site_valid_locales = site_locales_default_head(@site.valid_locales)
   end
   
   def set_current_item
@@ -164,4 +164,14 @@ class ApplicationController < ActionController::Base
     end
   end
 
+  def site_locales_default_head(locales)
+    if locales[0].eql? I18n.locale.to_s
+      locales
+    else
+      a = Array.new(locales)
+      shift_out = a.delete(I18n.locale.to_s)
+      [shift_out] + a
+    end
+  end
+
 end
diff --git a/app/helpers/admin/ad_images_helper.rb b/app/helpers/admin/ad_images_helper.rb
index 1f2422fc..b09bd263 100644
--- a/app/helpers/admin/ad_images_helper.rb
+++ b/app/helpers/admin/ad_images_helper.rb
@@ -1,7 +1,3 @@
 module Admin::AdImagesHelper
 
-  def active_when_default_locale_eq locale
-    locale.to_sym == I18n.default_locale ? 'active': ''
-  end
-
 end
diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index c36a420f..c59f16c3 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -2,12 +2,6 @@ module ApplicationHelper
 
   FLASH_NOTICE_KEYS = [:error, :notice, :warning]
   
-  def site_valid_locales_default_head
-    index = @site_valid_locales.rindex I18n.default_locale.to_s
-    shift_out = @site_valid_locales.shift(index)
-    @site_valid_locales += shift_out
-  end
-  
   def colorize_in_use_locale(locale)
     @site_in_use_locales.include?(locale)? 'green' : 'red'
   end
@@ -147,4 +141,8 @@ module ApplicationHelper
     javascripts
   end
 
+  def active_when_current_locale_eq(locale)
+    locale.to_sym == I18n.locale ? 'active': ''
+  end
+
 end
diff --git a/app/views/admin/ad_images/_form.html.erb b/app/views/admin/ad_images/_form.html.erb
index cd04b4fe..be5f2b47 100644
--- a/app/views/admin/ad_images/_form.html.erb
+++ b/app/views/admin/ad_images/_form.html.erb
@@ -130,14 +130,14 @@
 			<div id="post-body">
 				<div id="post-body-content" class="clear">
 					<ul class="nav nav-tabs">
-						<% site_valid_locales_default_head.each do |locale|%>
-							<%= content_tag :li,link_to(I18nVariable.from_locale(locale),"##{locale}",:data=>{:toggle => "tab"}),:class=> (active_when_default_locale_eq locale)  %>
+						<% @site_valid_locales.each do |locale|%>
+							<%= content_tag :li,link_to(I18nVariable.from_locale(locale),"##{locale}",:data=>{:toggle => "tab"}),:class=> (active_when_current_locale_eq locale)  %>
 						<% end %>
 					</ul>
 					<div class="tab-content">
 						<%= select_tag 'ad_banner[id]',options_from_collection_for_select(AdBanner.all, "id", "title",params[:ad_banner_id]) , :class=>"input-medium",   %>
-						<% site_valid_locales_default_head.each do |locale|%>
-							<%= content_tag :div,:class	=> "tab-pane #{active_when_default_locale_eq locale}",:id=>"#{locale}" do%>
+						<% @site_valid_locales.each do |locale|%>
+							<%= content_tag :div,:class	=> "tab-pane #{active_when_current_locale_eq locale}",:id=>"#{locale}" do%>
 								<div class="title">
 									<%= f.fields_for :title,@ad_image.title do |f| %>
 										<%= f.text_field locale,:class=>"ad_image-title post-title",:placeholder => "輸入標題"%>
diff --git a/vendor/built_in_modules/announcement/app/views/panel/announcement/back_end/bulletins/_form.html.erb b/vendor/built_in_modules/announcement/app/views/panel/announcement/back_end/bulletins/_form.html.erb
index 23557206..59cfa538 100644
--- a/vendor/built_in_modules/announcement/app/views/panel/announcement/back_end/bulletins/_form.html.erb
+++ b/vendor/built_in_modules/announcement/app/views/panel/announcement/back_end/bulletins/_form.html.erb
@@ -126,7 +126,7 @@
 			
 			<ul class="nav nav-tabs">
 				<%# @site_valid_locales.each_with_index do |locale, i| %>
-				<% site_valid_locales_default_head.each_with_index do |locale, i| %>
+				<% @site_valid_locales.each_with_index do |locale, i| %>
 			    <li <%= ( i == 0 ) ? " class='active'" : '' %>><a data-toggle="tab" href=".<%= locale %>"><%= I18nVariable.from_locale(locale) %></a></li>
 				<% end %>
 			</ul>
@@ -134,7 +134,7 @@
 			<div class="tab-content">
 			
 				<%# @site_valid_locales.each_with_index do |locale, i| %>
-				<% site_valid_locales_default_head.each_with_index do |locale, i| %>
+				<% @site_valid_locales.each_with_index do |locale, i| %>
 				
 				<div class="<%= locale %> fade tab-pane <%= ( i == 0 ) ? "in active" : '' %>">
 
diff --git a/vendor/built_in_modules/news/app/views/panel/news/back_end/news_bulletins/_form.html.erb b/vendor/built_in_modules/news/app/views/panel/news/back_end/news_bulletins/_form.html.erb
index ce00b63f..38c2db31 100644
--- a/vendor/built_in_modules/news/app/views/panel/news/back_end/news_bulletins/_form.html.erb
+++ b/vendor/built_in_modules/news/app/views/panel/news/back_end/news_bulletins/_form.html.erb
@@ -126,7 +126,7 @@
 			
 			<ul class="nav nav-tabs">
 				<%# @site_valid_locales.each_with_index do |locale, i| %>
-				<% site_valid_locales_default_head.each_with_index do |locale, i| %>
+				<% @site_valid_locales.each_with_index do |locale, i| %>
 			    <li <%= ( i == 0 ) ? " class='active'" : '' %>><a data-toggle="tab" href=".<%= locale %>"><%= I18nVariable.from_locale(locale) %></a></li>
 				<% end %>
 			</ul>
@@ -134,7 +134,7 @@
 			<div class="tab-content">
 			
 				<%# @site_valid_locales.each_with_index do |locale, i| %>
-				<% site_valid_locales_default_head.each_with_index do |locale, i| %>
+				<% @site_valid_locales.each_with_index do |locale, i| %>
 				
 				<div class="<%= locale %> fade tab-pane <%= ( i == 0 ) ? "in active" : '' %>">