diff --git a/app/models/course.rb b/app/models/course.rb
index 46599dbfc..7288c3b3b 100644
--- a/app/models/course.rb
+++ b/app/models/course.rb
@@ -50,6 +50,8 @@ class Course < ActiveRecord::Base
   validates_format_of  :name,:with =>/^[^ ]+[a-zA-Z0-9_\u4e00-\u9fa5\s\S]+$/
   validates_length_of :description, :maximum => 10000
   before_save :self_validate
+  # 公开课程变成私有课程，所有资源都变成私有
+  after_update :update_files_public
   after_create :create_board_sync, :act_as_course_activity, :act_as_course_message
   before_destroy :delete_all_members
 
@@ -212,6 +214,14 @@ class Course < ActiveRecord::Base
   def self_validate
 
   end
+  
+  def update_files_public
+    unless self.is_public?
+      self.attachments.each do |a|
+        a.update_attributes(:is_public => false)
+      end
+    end
+  end
 
   # 创建课程讨论区
   def create_board_sync
diff --git a/app/views/files/_attachement_list.html.erb b/app/views/files/_attachement_list.html.erb
index eb730640c..4c631d22f 100644
--- a/app/views/files/_attachement_list.html.erb
+++ b/app/views/files/_attachement_list.html.erb
@@ -23,23 +23,44 @@
 </div>
 <% checkBox = (@course.present? && @course.is_public?) ? 'public' : 'private'%>
 <button name="button" class="sub_btn" onclick="_file.click()" onmouseover="this.focus()" style="<%= ie8? ? 'display:none' : ''%>" type="button" ><%= l(:label_browse) %></button>
-<%= file_field_tag 'attachments[dummy][file]',
-                   :id => '_file',
-                   :class => ie8? ? '':'file_selector',
-                   :multiple => true,
-                   :onchange => 'addInputFilesCourseSource(this,"'+ checkBox.to_s+'");',
-                   :style => ie8? ? '': 'display:none',
-                   :data => {
-                           :max_file_size => Setting.attachment_max_size.to_i.kilobytes,
-                           :max_file_size_message => l(:error_attachment_too_big, :max_size => number_to_human_size(Setting.attachment_max_size.to_i.kilobytes)),
-                           :max_concurrent_uploads => Redmine::Configuration['max_concurrent_ajax_uploads'].to_i,
-                           :upload_path => uploads_path(:format => 'js'),
-                           :description_placeholder => l(:label_optional_description),
-                           :field_is_public => l(:field_is_public),
-                           :are_you_sure => l(:text_are_you_sure),
-                           :file_count => l(:label_file_count),
-                           :delete_all_files => l(:text_are_you_sure_all)
-                   } %>
+<% if @course %>
+    <%= file_field_tag 'attachments[dummy][file]',
+                       :id => '_file',
+                       :class => ie8? ? '':'file_selector',
+                       :multiple => true,
+                       :onchange => 'addInputFilesCourseSource(this,"'+ checkBox.to_s+'");',
+                       :style => ie8? ? '': 'display:none',
+                       :data => {
+                               :max_file_size => Setting.attachment_max_size.to_i.kilobytes,
+                               :max_file_size_message => l(:error_attachment_too_big, :max_size => number_to_human_size(Setting.attachment_max_size.to_i.kilobytes)),
+                               :max_concurrent_uploads => Redmine::Configuration['max_concurrent_ajax_uploads'].to_i,
+                               :upload_path => uploads_path(:format => 'js'),
+                               :description_placeholder => l(:label_optional_description),
+                               :field_is_public => l(:field_is_public),
+                               :are_you_sure => l(:text_are_you_sure),
+                               :file_count => l(:label_file_count),
+                               :delete_all_files => l(:text_are_you_sure_all)
+                       } %>
+<% else %>
+    <%= file_field_tag 'attachments[dummy][file]',
+                       :id => '_file',
+                       :class => ie8? ? '':'file_selector',
+                       :multiple => true,
+                       :onchange => 'addInputFiles(this);',
+                       :style => ie8? ? '': 'display:none',
+                       :data => {
+                               :max_file_size => Setting.attachment_max_size.to_i.kilobytes,
+                               :max_file_size_message => l(:error_attachment_too_big, :max_size => number_to_human_size(Setting.attachment_max_size.to_i.kilobytes)),
+                               :max_concurrent_uploads => Redmine::Configuration['max_concurrent_ajax_uploads'].to_i,
+                               :upload_path => uploads_path(:format => 'js'),
+                               :description_placeholder => l(:label_optional_description),
+                               :field_is_public => l(:field_is_public),
+                               :are_you_sure => l(:text_are_you_sure),
+                               :file_count => l(:label_file_count),
+                               :delete_all_files => l(:text_are_you_sure_all)
+                       } %>
+<% end %>
+
 <!--<input type="submit" name="" value="上传文件" class="f_l ml10" style="width:80px; height:26px;">-->
 
   <span id="upload_file_count">
diff --git a/app/views/my/account.html.erb b/app/views/my/account.html.erb
index 0531ea9e7..7bc674ea6 100644
--- a/app/views/my/account.html.erb
+++ b/app/views/my/account.html.erb
@@ -603,7 +603,7 @@
               success: function (data) {
                   schoolsResult = data.schools;
                   count = data.count;
-                  maxPage = count % 100 + 1; //最大页码值
+                  maxPage = Math.ceil(count/100) //最大页码值
                   if(schoolsResult.length != undefined && schoolsResult.length != 0) {
                       var i = 0;
                       $("#search_school_result_list").html('');