diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index 95fbed1d3..730546aa6 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -862,7 +862,7 @@ class ProjectsController < ApplicationController
             
       if params[:project][:is_public] == '0'
         project_status = ProjectStatus.find_by_project_id(@project.id)
-        project_status.destroy
+        project_status.destroy if project_status
       elsif params[:project][:is_public] == '1'
         project_status = ProjectStatus.create(:project_id => @project.id, :watchers_count => @project.watchers.count, :changesets_count => @project.changesets.count,:grade => 0, :project_type => @project.project_type)
       end
diff --git a/app/controllers/welcome_controller.rb b/app/controllers/welcome_controller.rb
index d566c9b86..5e8eef074 100644
--- a/app/controllers/welcome_controller.rb
+++ b/app/controllers/welcome_controller.rb
@@ -17,7 +17,7 @@
 
 class WelcomeController < ApplicationController
   caches_action :robots
-  before_filter :fake, :only => [:index, :course]
+  # before_filter :fake, :only => [:index, :course]
   before_filter :entry_select_course, :entry_select_contest, :entry_select_user, :only => [:index]
  
   def index
diff --git a/app/views/files/index.html.erb b/app/views/files/index.html.erb
index cfaba8749..98befd091 100644
--- a/app/views/files/index.html.erb
+++ b/app/views/files/index.html.erb
@@ -1,14 +1,14 @@
 <!-- <h3> --><!-- %=l(:label_attachment_plural)%></h3 -->
  
-<span class="borad-title"><%=(@project.project_type == 1) ? t(:label_user_course) : t(:label_project) %>文件共享专区</span>
+<span class="borad-title"><%=(@project.project_type == 1) ? t(:label_user_course) : t(:label_project) %>资源共享区</span>
 
 <div class="content-title-top">
   <%#= link_to(l(:label_attachment_new), 'javascript:void(0);', :onclick=>"$('#file_buttons').slideToggle();", :class => 'icon icon-add') if User.current.allowed_to?(:manage_files, @project) %>
   <div class="clearfix"></div>
   <div id="file_buttons" class="nhidden">
     <%#= link_to('上传文件', new_project_file_path(@project), :class => 'icon m5p5 button_submit') if User.current.allowed_to?(:manage_files, @project) %>
-    <%= link_to('上传文件', 'javascript:void(0);', :class => 'icon m5p5 button_submit', :onclick => "$('#relation_file_div').slideUp();$('#upload_file_div').slideToggle('slow');") if User.current.allowed_to?(:manage_files, @project) %>
-    <%= link_to('关联已有文件', 'javascript:void(0);', :onclick => "$('#upload_file_div').slideUp();$('#relation_file_div').slideToggle();", :class => 'icon m5p5 button_submit') if User.current.allowed_to?(:manage_files, @project) %>
+    <%= link_to( l(:label_upload_files), 'javascript:void(0);', :class => 'icon m5p5 button_submit', :onclick => "$('#relation_file_div').slideUp();$('#upload_file_div').slideToggle('slow');") if User.current.allowed_to?(:manage_files, @project) %>
+    <%= link_to(l(:label_relation_files), 'javascript:void(0);', :onclick => "$('#upload_file_div').slideUp();$('#relation_file_div').slideToggle();", :class => 'icon m5p5 button_submit') if User.current.allowed_to?(:manage_files, @project) %>
     <div id="upload_file_div" class="relation_file_div hidden" >
       <%= render :partial => 'new', locals: {project: @project}%>
     </div> 
diff --git a/app/views/welcome/course.html.erb b/app/views/welcome/course.html.erb
index f757e83bb..c91b3e453 100644
--- a/app/views/welcome/course.html.erb
+++ b/app/views/welcome/course.html.erb
@@ -255,7 +255,7 @@
 </div>
 <div class="clearfix"></div>
 
-<div style="width:100%;">
+<div class="hidden" style="width:100%;">
 	<div style="width:600px;margin:0px auto;margin-top:80px;">
 	<table style="width:600px;font-size:15px; color: #e8770d;">
 		<tr>
diff --git a/app/views/welcome/index.html.erb b/app/views/welcome/index.html.erb
index 1ffb23856..7a241981a 100644
--- a/app/views/welcome/index.html.erb
+++ b/app/views/welcome/index.html.erb
@@ -246,7 +246,7 @@
 
 <div class="clearfix"></div>
 
-<div style="width:100%;">
+<div class="hidden" style="width:100%;">
 	<div style="width:600px;margin:0px auto;margin-top:180px;">
 	<table style="width:600px;font-size:15px; color: gray;">
 		<tr>
diff --git a/config/locales/zh.yml b/config/locales/zh.yml
index 6328e4337..f4b6fe0ce 100644
--- a/config/locales/zh.yml
+++ b/config/locales/zh.yml
@@ -1425,7 +1425,7 @@ zh:
   label_has_praisers: 赞(%{count})
   label_has_watchers: 关注(%{count})
   label_has_fans: 粉丝(%{count})
-  label_coursefile_sharingarea: 课程文件共享专区
+  label_coursefile_sharingarea: 课程资源共享区
   #modify by men
   label_x_has_fans:
     zero: 粉丝(%{count})
@@ -1668,7 +1668,7 @@ zh:
   label_public_info: （打钩为公开，不打钩则不公开，若不公开，仅项目成员可见该项目。）
   label_course_view_student: 查看其他课程
   label_course_student: 学生
-  label_homework: 课程作业
+  label_homework: 课程实践
   label_course_file: 资源库 #资料共享
   label_stores_index: 资源搜索
   label_course_new_homework: 新建作业
@@ -1829,7 +1829,8 @@ zh:
   label_sumbit_empty: 搜索内容不能为空
   
   #add by linchun (竞赛相关)
-  label_upload_files: 上传文件
+  label_upload_files: 上传资源
+  label_relation_files: 关联已有资源
   label_upload_softwarepackage: 上传软件包
   label_upload_cuttingphoto: 上传截图
   label_contests_reward_method: 奖励方式