diff --git a/app/views/courses/_courses_jours.html.erb b/app/views/courses/_courses_jours.html.erb
index 69e600b94..adbbf4780 100644
--- a/app/views/courses/_courses_jours.html.erb
+++ b/app/views/courses/_courses_jours.html.erb
@@ -15,7 +15,7 @@
             <%= hidden_field_tag :asset_id,params[:asset_id],:required => false,:style => 'display:none' %>
             <%= f.kindeditor 'course_message',:height => '140px;',:editor_id => 'leave_message_editor',:input_html=>{:id => "leave_meassge",:style => "resize: none;",
                  :placeholder => "#{l(:label_welcome_my_respond)}",:maxlength => 250}%>
-            <a href="javascript:void(0)" class="grey_btn fr ml10 mt10">取&nbsp;&nbsp;消</a>
+            <a href="javascript:void(0)" class="grey_btn fr ml10 mt10" onclick="KindEditor.instances[0].html('');">取&nbsp;&nbsp;消</a>
             <a href="javascript:void(0)"  onclick='leave_message_editor.sync();$("#leave_message_form").submit();' class="blue_btn fr mt10">
               <%= l(:button_leave_meassge)%>
             </a>
diff --git a/app/views/news/_course_show.html.erb b/app/views/news/_course_show.html.erb
index 1160f09e3..2ead9173a 100644
--- a/app/views/news/_course_show.html.erb
+++ b/app/views/news/_course_show.html.erb
@@ -1,9 +1,3 @@
-<script>
-    function clearMessage()
-    {
-        $("#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" %>
 <div class="project_r_h">
   <h2 class="project_h2"><%= l(:label_course_news) %></h2>
@@ -39,7 +33,7 @@
             <%= kindeditor_tag :comment, '',:height=>'100',:editor_id =>'comment_editor', :placeholder=>"最多250个字"%>
           </div>
           <p class="mt10">
-            <a href="javascript:void(0)" class="grey_btn fr ml10" onclick="clearMessage();">
+            <a href="javascript:void(0)" class="grey_btn fr ml10" onclick="KindEditor.instances[0].html('');">
               <%= l(:label_cancel_with_space) %>
             </a>
             <a href="javascript:void(0)" class="blue_btn fr" onclick="submitComment();">
diff --git a/public/stylesheets/courses.css b/public/stylesheets/courses.css
index d93bc8519..bb7294e2e 100644
--- a/public/stylesheets/courses.css
+++ b/public/stylesheets/courses.css
@@ -174,7 +174,7 @@ 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:205px; border-bottom:1px dashed #CCC; padding-top:10px;}
+.msg_box{ width:670px; height:225px; 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; }