diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index e3b2df048..4967505a3 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -335,7 +335,7 @@ module ApplicationHelper
         # set the project environment to please macros.
         @course = course
         if (ancestors.empty? )#|| course.is_descendant_of?(ancestors.last))
-          s << "<ul class=courses'>\n"
+          s << "<ul class=courses>\n"
         else
           ancestors.pop
           s << "</li>"
diff --git a/app/helpers/contests_helper.rb b/app/helpers/contests_helper.rb
index 184fc7c40..01c7d544f 100644
--- a/app/helpers/contests_helper.rb
+++ b/app/helpers/contests_helper.rb
@@ -173,6 +173,18 @@ module ContestsHelper
     end
     tmp
   end
-  
+
+  #作品分类下拉框
+  def work_type_opttion
+    type = []
+    #work_types = WorksCategory.all
+    WorksCategory.all.each do |work_type|
+      option = []
+      option << work_type.category
+      option << work_type.category
+      type << option
+    end
+    type
+  end
 
 end
\ No newline at end of file
diff --git a/app/helpers/courses_helper.rb b/app/helpers/courses_helper.rb
index 033b6405c..59acc188b 100644
--- a/app/helpers/courses_helper.rb
+++ b/app/helpers/courses_helper.rb
@@ -371,7 +371,7 @@ module CoursesHelper
 
   #获取作业的教师评分
   def teacher_score_for_homework homework
-    member = searchTeacherAndAssistant(homework.bid.courses.first).first#searchPeopleByRoles(homework.bid.courses.first,TeacherRoles).first
+     member = searchTeacherAndAssistant(homework.bid.courses.first).first#searchPeopleByRoles(homework.bid.courses.first,TeacherRoles).first
     if member.nil?
       return "0.00"
     end
diff --git a/app/models/course.rb b/app/models/course.rb
index 04b0535bd..1c2828adc 100644
--- a/app/models/course.rb
+++ b/app/models/course.rb
@@ -34,7 +34,7 @@ class Course < ActiveRecord::Base
   acts_as_attachable :view_permission => :view_files,
                      :delete_permission => :manage_files
 
-  validates_presence_of :password, :term,:name
+  validates_presence_of :password, :term,:name ,:class_period
   validates_format_of  :class_period, :with =>/^\d*$/
   #validates_format_of  :name,:with =>/^[a-zA-Z0-9_\u4e00-\u9fa5]+$/
 
diff --git a/app/models/works_category.rb b/app/models/works_category.rb
new file mode 100644
index 000000000..d8aeecd4e
--- /dev/null
+++ b/app/models/works_category.rb
@@ -0,0 +1,3 @@
+class WorksCategory < ActiveRecord::Base
+  attr_accessible :category
+end
diff --git a/app/views/bids/_homework_form.html.erb b/app/views/bids/_homework_form.html.erb
index 92b162035..f7c753b45 100644
--- a/app/views/bids/_homework_form.html.erb
+++ b/app/views/bids/_homework_form.html.erb
@@ -33,7 +33,7 @@
 <p><%= f.text_field :deadline, :required => true, :size => 60, :style => "width:150px;" %><%= calendar_for('bid_deadline')%>
 </p>
 <!--
-<p><%= f.select :homework_type, homework_type_option %>
+<p><%#= f.select :homework_type, homework_type_option %>
 </p>
 -->
 <p><%= f.select :is_evaluation, is_evaluation_option %>
diff --git a/app/views/contests/show_attendingcontest.html.erb b/app/views/contests/show_attendingcontest.html.erb
index cb6024e29..26aa3ccd4 100644
--- a/app/views/contests/show_attendingcontest.html.erb
+++ b/app/views/contests/show_attendingcontest.html.erb
@@ -91,7 +91,7 @@
         <tr style="width:700px; margin-left: -10px;">
           <span><%= l(:label_work_name) %></span>
           <span class="contest-star"> * </span>:
-          <td><%= f.text_field :name, :required => true, :size => 60, :style => "width:400px;" %></td>
+          <td><%= f.text_field :name, :required => true, :size => 60, :style => "width:350px;" %></td>
           <span style="font-size: 10px">(<%= l(:label_workname_lengthlimit) %>)</span>
         </tr>
         <br/>
@@ -101,17 +101,32 @@
         <tr style="width:800px;">
           <span><%= l(:label_running_platform) %></span>
           <span class="contest-star"> * </span>:
-          <td style="width: 100px"><%= f.text_field :android_min_version_available, :required => true, :size => 60, :style => "width:400px;" %></td>
+          <td style="width: 100px"><%= f.text_field :android_min_version_available, :required => true, :size => 60, :style => "width:350px;" %></td>
 
         </tr>
         <br/>
+        <br/>
+        <br/>
 
+        <tr style="width:800px;">
+          <span><%= l(:label_work_type) %></span>
+          <span class="contest-star"> * </span>:
+          <td style="width: 100px">
+            <span>
+              <%#= select_tag 'app_type_name', work_type_opttion, {:name => 'app_type_name',:style => "width:358px;"} %>
+            </span>
+            <%= f.select :app_type_name,work_type_opttion, {},{:style => "width:358px;"}  %>
+            <%#= f.text_field :app_type_name, :required => true, :size => 60, :style => "width:400px;" %>
+          </td>
+        </tr>
+        <br/>
+        <br/>
         <br/>
 
         <tr style="width:800px;">
           <span><%= l(:label_work_description) %></span>
           <span class="contest-star"> * </span>:
-          <td style="width: 100px"><%= f.text_field :description, :required => true, :size => 60, :style => "width:400px;" %></td>
+          <td style="width: 100px"><%= f.text_field :description, :required => true, :size => 60, :style => "width:350px;" %></td>
           <span style="font-size: 10px">(<%= l(:label_workdescription_lengthlimit) %>)</span>
         </tr>
         <br/>
@@ -121,7 +136,7 @@
         <tr style="width:800px;">
           <span><%= l(:label_softapplication_developers) %></span>
           <span class="contest-star"> * </span>:
-          <td style="width: 100px"><%= f.text_field :application_developers, :required => true, :size => 60, :style => "width:400px;" %></td>
+          <td style="width: 100px"><%= f.text_field :application_developers, :required => true, :size => 60, :style => "width:350px;" %></td>
 
         </tr>
         <br/>
@@ -130,8 +145,9 @@
 
         <tr style="width:800px;">
           <span><%= l(:label_work_deposit_project) %>：</span>
-          <span style="padding-left: 4px"><%= select_tag 'project', options_for_select(select_option_helper(@option)), :name => 'project', :class => 'grayline2' %></span>
+          <span style="padding-left: 4px"><%= select_tag 'project', options_for_select(select_option_helper(@option)), :name => 'project', :class => 'grayline2',:style => "width:358px;" %></span>
           <span><%= link_to l(:label_create_new_projects),{:controller => 'projects',:action => 'new',course: 0, project_type: 0,host: Setting.project_domain}, :target => '_blank' %></span><!-- new_project_path(course: 0, project_type: 0) -->
+          <span><%= link_to l(:label_create_new_projects), new_project_path(course: 0, project_type: 0), :target => '_blank' %></span>
         </tr>
         <br/>
         <br/>
@@ -240,7 +256,10 @@
               <div style="padding-left: 68px">
                 <tr>
                   <td><%= l(:label_profile) %>:</td>
-                  <td> <%= c_project.project.description.truncate(90, omission: '...') %> </td>
+                  <td>
+                    <%#= c_project.project.description.truncate(90, omission: '...') %>
+                    <%= c_project.project.description %>
+                  </td>
                 </tr>
                 </br>
               </div>
@@ -276,7 +295,10 @@
               <div style="padding-left: 68px; padding-top: 5px">
                 <tr>
                   <td><strong><%= l(:label_profile) %>:</strong></td>
-                  <td> <%= c_softapplication.softapplication.description.truncate(90, omission: '...') %> </td>
+                  <td>
+                    <%#= c_softapplication.softapplication.description.truncate(90, omission: '...') %>
+                    <%= c_softapplication.softapplication.description %>
+                  </td>
                 </tr>
                 </br>
               </div>
diff --git a/app/views/homework_attach/new.html.erb b/app/views/homework_attach/new.html.erb
index 9f0b69f58..6f5c56c5a 100644
--- a/app/views/homework_attach/new.html.erb
+++ b/app/views/homework_attach/new.html.erb
@@ -28,7 +28,7 @@
       </p>
       <p style=" padding: 3px 0 3px 0;padding-left: 50px;  clear:left;">
         <strong>提交项目&nbsp;&nbsp;：</strong>
-        <%= f.select :project_id, options_for_select(user_projects_option),:name => "project_id", :required => true, :style => "width:490px;"%>
+        <%= f.select :project_id,options_for_select(user_projects_option), {},{:style => "width:490px;"}  %>
         <%= link_to '创建项目', new_project_path(course: 0, project_type: 0), :target => '_blank' %>
         <p class="font_lighter" style="padding-left:120px;clear:left;">提交项目可以为空</p>
       </p>
diff --git a/app/views/layouts/_base_header.html.erb b/app/views/layouts/_base_header.html.erb
index 7e11d8357..17f0d1e60 100644
--- a/app/views/layouts/_base_header.html.erb
+++ b/app/views/layouts/_base_header.html.erb
@@ -41,6 +41,7 @@
 			<%=link_to_user(User.current)%>
 			<ul class="sub_menu">
 				<% if User.current.user_extensions && [UserExtensions::TEACHER, UserExtensions::STUDENT].include?(User.current.user_extensions.identity) -%>
+                 <% hasCourse=true%>
 				<li  id="course_loggedas_li"><%=link_to l(:label_my_course), {:controller => 'users', :action => 'user_courses', id: User.current.id, host: Setting.course_domain} %>
                   <ul class="course_sub_menu">
                     <% User.current.courses.each do |course| %>
@@ -52,8 +53,13 @@
                 </li>
 				<% end -%>
               <li id="project_loggedas_li"><%= link_to l(:label_my_projects), {:controller => 'users', :action => 'user_projects', id: User.current.id, host: Setting.project_domain} %>
-                <ul class="project_sub_menu">
-                  <% User.current.projects.each do |project| %>
+
+                <% if hasCourse %>
+                    <ul class="project_sub_menu" style="top: 35px">
+                <% else %>
+                    <ul class="project_sub_menu">
+                <% end %>
+                <% User.current.projects.each do |project| %>
                       <li><%= link_to project.name.truncate(10, omission: '...'), {:controller => 'projects', :action => 'show',id: project.id, host: Setting.project_domain } %></li>
                   <% end %>
                  </ul>
diff --git a/app/views/welcome/index.html.erb b/app/views/welcome/index.html.erb
index d50122d5d..dbd841159 100644
--- a/app/views/welcome/index.html.erb
+++ b/app/views/welcome/index.html.erb
@@ -143,7 +143,7 @@
 
 <div class="right" style="float: right; width: 48%; "> 
 	<ul class="welcome-message-list">
-      <!--<% cache 'forum_links' do %> -->
+      <!--<%# cache 'forum_links' do %> -->
 		<div class="forum-topic" style="height: 25px; width: 98%; margin-left: 2px;">
 		  <h3 style="color: rgb(21, 188, 207);">
 			<strong>贴吧动态</strong>
@@ -151,11 +151,11 @@
 			<%= link_to "我要反馈" , suggestion_send_path, {:class => 'orangeButton idea_btn', :style => "color: #EEEEEE" }%></h3>
 			<span style="margin-top: -30px;float: right; display: block;"><%= link_to "更多>>", forums_path %></span>
 		</div>
-          <!--<%end %> -->
+          <!--<%#end %> -->
 		<div class="welcome-box-list-new memo_activity">
 			<% topics = find_new_forum_topics(7) %>
 		<% topics.includes(:forum, :last_reply, :author).each do |topic|%>
-              <!--<% cache cache_key_for_topic(topic) do %> -->
+              <!--<%# cache cache_key_for_topic(topic) do %> -->
 			<li class="message-brief-intro">
 				<div class='memo_title text_nowrap'>
 					<%= link_to '['+topic.forum.name + ']',forum_path(topic.forum),:class => 'memo_Bar_title' %><%= link_to topic.subject.truncate(30, omission: '...'), topic.event_url,title: topic.subject %>
@@ -175,7 +175,7 @@
 					</span>
 				</div>
 			</li>
-                  <!--<%end %> --> <!-- cache -->
+                  <!--<%#end %> --> <!-- cache -->
 		<% end %>
 		</div>
 	</ul>
diff --git a/db/migrate/20140719030741_create_works_categories.rb b/db/migrate/20140719030741_create_works_categories.rb
new file mode 100644
index 000000000..0b08e25c4
--- /dev/null
+++ b/db/migrate/20140719030741_create_works_categories.rb
@@ -0,0 +1,9 @@
+class CreateWorksCategories < ActiveRecord::Migration
+  def change
+    create_table :works_categories do |t|
+      t.string :category
+
+      t.timestamps
+    end
+  end
+end
diff --git a/db/migrate/20140719030941_set_works_categories.rb b/db/migrate/20140719030941_set_works_categories.rb
new file mode 100644
index 000000000..44e6bd730
--- /dev/null
+++ b/db/migrate/20140719030941_set_works_categories.rb
@@ -0,0 +1,98 @@
+# -*coding:utf-8 -*-
+class SetWorksCategories < ActiveRecord::Migration
+  def up
+    workscategory1 = WorksCategory.new
+    workscategory1.category = "影音播放"
+    workscategory1.save
+
+    workscategory2 = WorksCategory.new
+    workscategory2.category = "交通导航"
+    workscategory2.save
+
+    workscategory3 = WorksCategory.new
+    workscategory3.category = "生活娱乐"
+    workscategory3.save
+
+    workscategory4 = WorksCategory.new
+    workscategory4.category = "网络购物"
+    workscategory4.save
+
+    workscategory5 = WorksCategory.new
+    workscategory5.category = "输入法"
+    workscategory5.save
+
+    workscategory6 = WorksCategory.new
+    workscategory6.category = "聊天社区"
+    workscategory6.save
+
+    workscategory7 = WorksCategory.new
+    workscategory7.category = "浏览器"
+    workscategory7.save
+
+    workscategory8 = WorksCategory.new
+    workscategory8.category = "窗口小部件"
+    workscategory8.save
+
+    workscategory9 = WorksCategory.new
+    workscategory9.category = "安全防护"
+    workscategory9.save
+
+    workscategory10 = WorksCategory.new
+    workscategory10.category = "拍照摄影"
+    workscategory10.save
+
+    workscategory11 = WorksCategory.new
+    workscategory11.category = "实用工具"
+    workscategory11.save
+
+    workscategory12 = WorksCategory.new
+    workscategory12.category = "词典翻译"
+    workscategory12.save
+
+    workscategory13 = WorksCategory.new
+    workscategory13.category = "教育阅读"
+    workscategory13.save
+
+    workscategory14 = WorksCategory.new
+    workscategory14.category = "主题桌面"
+    workscategory14.save
+
+    workscategory15 = WorksCategory.new
+    workscategory15.category = "事务管理"
+    workscategory15.save
+
+    workscategory16 = WorksCategory.new
+    workscategory16.category = "系统工具"
+    workscategory16.save
+
+    workscategory17 = WorksCategory.new
+    workscategory17.category = "资讯新闻"
+    workscategory17.save
+
+    workscategory18 = WorksCategory.new
+    workscategory18.category = "金融理财"
+    workscategory18.save
+
+    workscategory19 = WorksCategory.new
+    workscategory19.category = "通话通信"
+    workscategory19.save
+
+    workscategory20 = WorksCategory.new
+    workscategory20.category = "电子办公"
+    workscategory20.save
+
+    workscategory21 = WorksCategory.new
+    workscategory21.category = "体育竞技"
+    workscategory21.save
+
+    workscategory22 = WorksCategory.new
+    workscategory22.category = "健康医疗"
+    workscategory22.save
+  end
+
+  def down
+    WorksCategory.all do |wc|
+      wc.destroy
+    end
+  end
+end
diff --git a/public/stylesheets/application.css b/public/stylesheets/application.css
index a8d030b6b..3b1e503c4 100644
--- a/public/stylesheets/application.css
+++ b/public/stylesheets/application.css
@@ -696,7 +696,6 @@ ul.user_course_sort li{list-style-type:none;
     height:auto;}
 
 
-
 .info-break{
 	word-wrap: break-word;
 	word-break: break-all;	
@@ -1765,6 +1764,22 @@ input#content_comments {width: 99%}
 
 p.pagination {margin-top:8px; font-size: 90%}
 
+
+ul.courses {margin:0px; padding-left:0em;}
+ul.courses ul {padding-left:1.6em;}
+ul.courses.root {margin:0; padding:0;}
+
+ul.courses li {list-style-type:none;}
+
+ul.courses li {list-style-type:none;}
+#courses-index ul.courses ul.courses { border-left: 3px solid #e0e0e0; padding-left:1em;}
+#courses-index ul.courses li.root {margin-bottom: 1em;}
+#courses-index ul.courses li.child {margin-top: 1em;}
+#courses-index ul.courses div.root a.course {font-family:'微软雅黑', "Trebuchet MS", Verdana, sans-serif; font-weight: bold; font-size: 14px; margin: 0 0 10px 0; }
+.my-course { padding-left: 18px; background: url(../images/fav.png) no-repeat 0 50%; }
+
+
+
 /***** Tabular forms ******/
 .tabular p{
   margin: 0;
diff --git a/test/fixtures/works_categories.yml b/test/fixtures/works_categories.yml
new file mode 100644
index 000000000..d353b9d70
--- /dev/null
+++ b/test/fixtures/works_categories.yml
@@ -0,0 +1,7 @@
+# Read about fixtures at http://api.rubyonrails.org/classes/ActiveRecord/Fixtures.html
+
+one:
+  category: MyString
+
+two:
+  category: MyString
diff --git a/test/unit/works_category_test.rb b/test/unit/works_category_test.rb
new file mode 100644
index 000000000..16cf45b58
--- /dev/null
+++ b/test/unit/works_category_test.rb
@@ -0,0 +1,7 @@
+require 'test_helper'
+
+class WorksCategoryTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end