diff --git a/app/controllers/account_controller.rb b/app/controllers/account_controller.rb
index dc1cceb87..181f76b22 100644
--- a/app/controllers/account_controller.rb
+++ b/app/controllers/account_controller.rb
@@ -336,9 +336,11 @@ class AccountController < ApplicationController
       :expires => 1.month.from_now,
       :path => (Redmine::Configuration['autologin_cookie_path'] || '/'),
       :secure => (Redmine::Configuration['autologin_cookie_secure'] ? true : false),
-      :domain => Redmine::Configuration['cookie_domain'],
       :httponly => true
     }
+    if Redmine::Configuration['cookie_domain'].present?
+      cookie_options = cookie_options.merge(domain: Redmine::Configuration['cookie_domain'])
+    end
     cookies[autologin_cookie_name] = cookie_options
   end
 
diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 88cd51d67..10e5e6f06 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -199,7 +199,11 @@ class ApplicationController < ActionController::Base
   # Logs out current user
   def logout_user
     if User.current.logged?
-      cookies.delete(autologin_cookie_name, domain: :all)
+      if Redmine::Configuration['cookie_domain'].present?
+        cookies.delete(autologin_cookie_name, domain: Redmine::Configuration['cookie_domain'])
+      else
+        cookies.delete autologin_cookie_name
+      end
       # Token.delete_all(["user_id = ? AND action = ?", User.current.id, 'autologin'])
       self.logged_user = nil
     end
diff --git a/app/views/courses/homework.html.erb b/app/views/courses/homework.html.erb
index 7b74351cd..32728adf0 100644
--- a/app/views/courses/homework.html.erb
+++ b/app/views/courses/homework.html.erb
@@ -31,7 +31,7 @@
         <% end %>
         <div class="cl"></div>
         <script>
-            $(function(){if($("#bid_description_<%= bid.id%>_content").height()>38){$("#bid_show_more_des_button<%= bid.id%>").show();}});
+            $(function(){if($("#bid_description_<%= bid.id%>_content").height()>360){$("#bid_show_more_des_button<%= bid.id%>").show();}});
         </script>
         <div  id="bid_description_<%= bid.id%>" class="news_description mt5">
           <div id="bid_description_<%= bid.id%>_content" class="upload_img">
diff --git a/app/views/welcome/_course_list.html.erb b/app/views/welcome/_course_list.html.erb
index 111c0abb1..d51bcc8f7 100644
--- a/app/views/welcome/_course_list.html.erb
+++ b/app/views/welcome/_course_list.html.erb
@@ -25,7 +25,7 @@
             <%= link_to course.school.name.try(:gsub, /(.+)$/, '\1'), options={:action => 'course', :school_id => course.school.id}, html_options={:method => 'get'} %>
         <% end %>
         (<%= course.members.count %>人)
-        <% files_count = course.attachments.count %>
+        <% files_count = visable_attachemnts_incourse(course).count %>
         <% if files_count > 0%>
             (<%= link_to "#{files_count.to_s}份", course_files_path(course) %>公开资料)
         <% end %>
diff --git a/config/configuration.yml b/config/configuration.yml
index 45e307157..390754a87 100644
--- a/config/configuration.yml
+++ b/config/configuration.yml
@@ -90,7 +90,6 @@ default:
       user_name: "huang.jingquan@163.com"
       password: 'xinhu1ji2qu366'
 
-  cookie_domain: ".trustie.net"
   # Absolute path to the directory where attachments are stored.
   # The default is the 'files' directory in your Redmine instance.
   # Your Redmine instance needs to have write permission on this
@@ -104,7 +103,7 @@ default:
   # autologin_cookie_name: the name of the cookie (default: autologin)
   # autologin_cookie_path: the cookie path (default: /)
   # autologin_cookie_secure: true sets the cookie secure flag (default: false)
-  autologin_cookie_name:
+  autologin_cookie_name: "autologin_trustie"
   autologin_cookie_path:
   autologin_cookie_secure:
 
@@ -201,7 +200,7 @@ default:
 # specific configuration options for production environment
 # that overrides the default ones
 production:
-  # CJK support
+  cookie_domain: ".trustie.net"
   rmagick_font_path: /usr/share/fonts/ipa-mincho/ipam.ttf
   email_delivery:
     delivery_method: :smtp
diff --git a/public/stylesheets/courses.css b/public/stylesheets/courses.css
index 5333b91a7..d27895b03 100644
--- a/public/stylesheets/courses.css
+++ b/public/stylesheets/courses.css
@@ -19,7 +19,7 @@ a:hover.project_name{ color:#016f33;}
 a.project_txt02{ color:#0781b4; width:618px; display:block; float:left;  overflow:hidden; white-space: nowrap; text-overflow:ellipsis;}
 a:hover.project_txt{ color:#066e9a;}
 .noline{ border-bottom:none;}
-.news_description{max-height: 38px;overflow:hidden; }
+.news_description{max-height: 360px;overflow:hidden; }
 .news_description_none{max-height: none;}
 a.news_foot{ border:1px solid #e8eef2; color: #929598; text-align:center; width:600px; height:20px; padding-top:3px; cursor:pointer;}
 a:hover.news_foot{ color:#787b7e; border:1px solid #d4d4d4;}