diff --git a/app/controllers/comments_controller.rb b/app/controllers/comments_controller.rb
index 57ad9d4ce..bb84b1fa4 100644
--- a/app/controllers/comments_controller.rb
+++ b/app/controllers/comments_controller.rb
@@ -27,7 +27,7 @@ class CommentsController < ApplicationController
     raise Unauthorized unless @news.commentable?
 
     @comment = Comment.new
-    @comment.safe_attributes = params[:comment]
+    @comment.comments = params[:comment]
     @comment.author = User.current
     if @news.comments << @comment
       if params[:asset_id]
diff --git a/app/views/news/_course_show.html.erb b/app/views/news/_course_show.html.erb
index d44deb66e..f7c5145f0 100644
--- a/app/views/news/_course_show.html.erb
+++ b/app/views/news/_course_show.html.erb
@@ -1,63 +1,7 @@
-<script type="text/javascript">
-    function regexTitle()
-    {
-        var name = $("#news_title").val();
-        if(name.length ==0)
-        {
-            $("#title_notice_span").text("标题不能为空");
-            $("#title_notice_span").css('color','#ff0000');
-            $("#title_notice_span").focus();
-            return false;
-        }
-        else if(name.length <= 60)
-        {
-            $("#title_notice_span").text("填写正确");
-            $("#title_notice_span").css('color','#008000');
-            return true;
-        }
-        else
-        {
-            $("#title_notice_span").text("标题超过60个字符");
-            $("#title_notice_span").css('color','#ff0000');
-            $("#title_notice_span").focus();
-            return false;
-        }
-    }
-
-    function regexDescription()
-    {
-        var name = $("#news_description").val();
-        if(name.length ==0)
-        {
-            $("#description_notice_span").text("描述不能为空");
-            $("#description_notice_span").css('color','#ff0000');
-            $("#description_notice_span").focus();
-            return false;
-        }
-        else
-        {
-            $("#description_notice_span").text("填写正确");
-            $("#description_notice_span").css('color','#008000');
-            return true;
-        }
-    }
-
-    function submitNews()
-    {
-        news_description_editor.sync();
-        if(regexTitle() && regexDescription())
-        {
-            $("#news-form").submit();
-        }
-    }
-    function submitComment()
-    {
-        comment_editor.sync();
-        $("#add_comment_form").submit();
-    }
+<script>
     function clearMessage()
     {
-        $("#comment_comments").val("");
+        $("#news_comment").html("<%= escape_javascript(hidden_field_tag :asset_id,params[:asset_id],:required => false,:style => 'display:none') %><%= escape_javascript(kindeditor_tag :comment, '',:height=>'100',:editor_id =>'comment_editor', :placeholder=>"最多250个字")%>");
     }
 </script>
 <%= javascript_include_tag "/assets/kindeditor/kindeditor" %>
@@ -77,8 +21,9 @@
 <div class="problem_main">
   <%= link_to image_tag(url_to_avatar(@news.author),:width => 42,:height => 42), user_path(@news.author), :class => "problem_pic fl" %>
   <div class="problem_txt fl mt5">
-    <h4 class="r_txt_tit mb5">  <%=h @news.title %></h4>
-    <%#= watcher_link(@news, User.current) %>
+    <h4 class="r_txt_tit mb5">
+      <%=h @news.title %>
+    </h4>
     <%= link_to(l(:button_edit),
                 edit_news_path(@news),
                 :class => 'talk_edit fr',
@@ -86,7 +31,11 @@
                 :onclick => '$("#edit-news").show(); return false;') if User.current.allowed_to?(:manage_news, @course) %>
     <%= delete_link(news_path(@news),:class => 'talk_edit fr') if User.current.allowed_to?(:manage_news, @course) %>
     <div class="cl"></div>
-    <div class="mb5"><%= textAreailizable(@news, :description) %><br /> <%= l(:label_create_time) %> ：  <%= format_time(@news.created_on) %></div>
+    <div class="mb5">
+      <%= @news.description.html_safe %>
+      <br />
+      <%= l(:label_create_time) %> ：  <%= format_time(@news.created_on) %>
+    </div>
     <%= link_to_attachments_course @news %>
     <!--<a href="#" class=" link_file">附件：爱覅俄方if.zip(27.5kB)</a> -->
   </div>
@@ -97,13 +46,17 @@
       <div class="msg_box">
         <h4><%= l(:label_comment_add) %></h4>
         <%= form_tag({:controller => 'comments', :action => 'create', :id => @news}, :id => "add_comment_form") do %>
-          <div class="box" >
+          <div class="box"  id="news_comment">
             <%= hidden_field_tag :asset_id,params[:asset_id],:required => false,:style => 'display:none' %>
             <%= kindeditor_tag :comment, '',:height=>'100',:editor_id =>'comment_editor', :placeholder=>"最多250个字"%>
           </div>
           <p class="mt10">
-            <a href="#" class="grey_btn fr ml10" onclick="clearMessage();"><%= l(:label_cancel_with_space) %></a>
-            <a href="#" class="blue_btn fr" onclick="submitComment();"><%= l(:label_comment_with_space) %></a>
+            <a href="javascript:void(0)" class="grey_btn fr ml10" onclick="clearMessage();">
+              <%= l(:label_cancel_with_space) %>
+            </a>
+            <a href="javascript:void(0)" class="blue_btn fr" onclick="submitComment();">
+              <%= l(:label_comment_with_space) %>
+            </a>
           </p>
       <% end %>
       </div>
@@ -116,12 +69,16 @@
         <div class="ping_dispic"><%= link_to image_tag(url_to_avatar(comment.author),:width => 42,:height => 42), user_path(comment.author)%></div>
         <div class="ping_discon">
           <div class="ping_distop">
-            <%= link_to_user_header(comment.author,false,:class => 'c_blue fb fl mb10 ') if comment.respond_to?(:author) %><span class="c_grey fr"><%= format_time(comment.created_on) %></span>
+            <%= link_to_user_header(comment.author,false,:class => 'c_blue fb fl mb10 ') if comment.respond_to?(:author) %>
+            <span class="c_grey fr">
+                <%= format_time(comment.created_on) %>
+            </span>
             <div class="cl"></div>
-            <p><%= textAreailizable(comment.comments) %></p>
+            <p><%= comment.comments.html_safe %></p>
             </div>
-            <div class="ping_disfoot"><%= link_to_if_authorized_course image_tag('delete.png'), {:controller => 'comments', :action => 'destroy', :id => @news, :comment_id => comment},
-                                                                     :data => {:confirm => l(:text_are_you_sure)}, :method => :delete, :title => l(:button_delete) %>
+            <div class="ping_disfoot">
+              <%= link_to_if_authorized_course image_tag('delete.png'), {:controller => 'comments', :action => 'destroy', :id => @news, :comment_id => comment},
+                     :data => {:confirm => l(:text_are_you_sure)}, :method => :delete, :title => l(:button_delete) %>
           </div>
 
         </div>
diff --git a/public/javascripts/course.js b/public/javascripts/course.js
index 64b8898f4..fcb72ee78 100644
--- a/public/javascripts/course.js
+++ b/public/javascripts/course.js
@@ -158,7 +158,7 @@ function regexTitle()
     {
         $("#title_notice_span").text("标题不能为空");
         $("#title_notice_span").css('color','#ff0000');
-        $("#title_notice_span").focus();
+        $("#news_title").focus();
         return false;
     }
     else if(name.length <= 60)
@@ -171,7 +171,7 @@ function regexTitle()
     {
         $("#title_notice_span").text("标题超过60个字符");
         $("#title_notice_span").css('color','#ff0000');
-        $("#title_notice_span").focus();
+        $("#news_title").focus();
         return false;
     }
 }
@@ -214,6 +214,12 @@ function submitFocus(obj)
     $(obj).focus();
 }
 
+function submitComment()
+{
+    comment_editor.sync();
+    $("#add_comment_form").submit();
+}
+
 /////////////////////////////////////////////////课程讨论区
 function course_board_submit_message_replay()
 {
diff --git a/public/stylesheets/courses.css b/public/stylesheets/courses.css
index b9202279c..fa9e9787c 100644
--- a/public/stylesheets/courses.css
+++ b/public/stylesheets/courses.css
@@ -175,7 +175,7 @@ a:hover.work_edit{color: #fff; background: #64bdd9;}
 .wzan a{ display: block;}
 a.wzan_img{background:url(images/pic_zan.png) 0 -59px no-repeat; display:block; height:31px; width:30px; color:#fff;}
 a.wzan_visited{background:url(images/pic_zan.png) 0 0 no-repeat;}
-.msg_box{ width:670px; height:200px; border-bottom:1px dashed #CCC; padding-top:10px;}
+.msg_box{ width:670px; height:205px; border-bottom:1px dashed #CCC; padding-top:10px;}
 .msg_box h4{ }
 .msg_box textarea{width:658px;height:90px;padding:5px;overflow:hidden;background-color: #ffffff; border:1px solid #CCC; margin:5px 0px; color:#666;  font-size:12px; }
 /*.msg_box a{ float:right; display:block; width:50px; height:22px; background:#15bccf; padding-top:3px; color:#fff; margin-left:10px; text-align:center; margin-top:5px;  }*/