diff --git a/app/views/layouts/base_courses.html.erb b/app/views/layouts/base_courses.html.erb
index cb5c2502f..bef5b7f4a 100644
--- a/app/views/layouts/base_courses.html.erb
+++ b/app/views/layouts/base_courses.html.erb
@@ -126,7 +126,7 @@
         <%# 工具栏展开 %>
         <% if @course.homework_commons.count == 0 || @course.news.count == 0 || course_file_num == 0 || course_poll_count == 0 || @course.exercises.count == 0 ||
              course_feedback_count == 0 || @course.exercises.count == 0 || (@course.boards.first ? @course.boards.first.topics.count : 0) == 0 %>
-            <div class="subNav subNav_jiantou" id="expand_tools_expand" nhtype="toggle4cookie" data-id="expand_tool_more" data-target="#navContentCourse" data-val="retract"><%= l(:label_project_more) %></div>
+            <div class="subNav subNav_jiantou" id="expand_tools_expand" nhtype="toggle4cookiecourse" data-id="expand_tool_more" data-target="#navContentCourse" data-val="retract"><%= l(:label_project_more) %></div>
             <ul class="navContent" id="navContentCourse">
               <%= render 'courses/tool_expand', :locals => {:is_teacher => is_teacher, :course_file_num => course_file_num} %>
             </ul>
diff --git a/public/javascripts/course.js b/public/javascripts/course.js
index df04d857b..6c2f0af71 100644
--- a/public/javascripts/course.js
+++ b/public/javascripts/course.js
@@ -1389,7 +1389,7 @@ $(function(){
         var personalized_map = cookieget(personalized_expand_key);
         if(personalized_map!=false){
             personalized_map = JSON.parse(personalized_map);
-            $("*[nhtype='toggle4cookie']").each(function(){
+            $("*[nhtype='toggle4cookiecourse']").each(function(){
                 var personalized_id=$(this).data('id');
                 var val = personalized_map[personalized_id];
                 if(val!=undefined && val!=$(this).data('val')){
@@ -1415,7 +1415,7 @@ $(function(){
         cookiesave(personalized_expand_key,JSON.stringify(personalized_map));
         target.toggle(timeout);
     }
-    $("*[nhtype='toggle4cookie']").on('click',function(){
+    $("*[nhtype='toggle4cookiecourse']").on('click',function(){
         personalized_click($(this),500);
     });
 
@@ -1428,3 +1428,7 @@ function submit_course_feedback() {
         var flag = true
     }
 }
+
+function show_more_tool(){
+    $('#navContentCourse').css('display', 'block');
+}