diff --git a/app/views/courses/_new_member_list.html.erb b/app/views/courses/_new_member_list.html.erb
index d04e14cc8..796d4ae92 100644
--- a/app/views/courses/_new_member_list.html.erb
+++ b/app/views/courses/_new_member_list.html.erb
@@ -1,6 +1,6 @@
 <% is_teacher = User.current.allowed_to?(:as_teacher, @course) || User.current.admin? %>
 <% if members.any? %>
-<table class="sy_new_table clear sy_new_table_width"  cellpadding="0" cellspacing="0">
+<table class="sy_new_table clear sy_new_table_width"  cellpadding="0" cellspacing="0" id="student_list_table">
   <thead>
   <tr class="clear">
     <th class="sy_th6">序号</th>
@@ -123,7 +123,7 @@
                   <%= form_tag({:controller => 'courses', :action => 'teacher_assign_group', :id => @course.id,:user_id => member.user_id, :group_id => @group && @group != -1 ? @group.id : -1},:remote=>'true', :method => 'post', :id=>"join_group_form_#{member.id}", :class => 'query_form') do %>
                       <div class="select-class-option">
                         <span class="hidden" style="display:inline-block; vertical-align:middle; max-width:70px;"><%=member.course_group_id == 0 ? "暂无" : member.course_group.name %></span>
-                        <a href="javascript:void(0)" class="sy_icons_edit pic_edit_icon" alt="编辑" style="background-position:0 5px;"></a>
+                        <a href="javascript:void(0)" class="sy_icons_edit pic_edit_icon fr mt9 options_show_or_hide" alt="编辑" style="background-position:0 5px;"></a>
                       </div>
                       <%= select( :name,:group_id, course_group_option(@course),
                                   { :include_blank => false,:selected => member.course_group_id},
@@ -136,7 +136,7 @@
         </td>
         <% if is_teacher %>
         <td>
-          <a href="javascript:void(0)" onClick="delete_confirm_box('<%=delete_member_course_path(@course, :member_id => member.id) %>', '确认删除该成员吗？');" class="sy_icons_del fl"></a>
+          <a href="javascript:void(0)" onClick="delete_confirm_box('<%=delete_member_course_path(@course, :member_id => member.id) %>', '确认删除该成员吗？');" class="sy_icons_del fl options_show_or_hide"></a>
         </td>
         <% end %>
       </tr>
@@ -159,6 +159,11 @@
 
 <script>
     $(document).ready(function(){
+//        $("#student_list_table").mouseover(function(){
+//            $(".options_show_or_hide").show();
+//        }).mouseout(function(){
+//            $(".options_show_or_hide").hide();
+//        });
         $(".pic_edit_icon").click(function(){
             $(this).parent().hide();
             $(this).parent().next().show();
diff --git a/app/views/courses/delete_member.js.erb b/app/views/courses/delete_member.js.erb
index 144ad749b..89588f4c1 100644
--- a/app/views/courses/delete_member.js.erb
+++ b/app/views/courses/delete_member.js.erb
@@ -2,3 +2,4 @@ hideModal();
 $("#member_li_<%=params[:member_id] %>").html("");
 $("#st_groups").html("<%=escape_javascript(render :partial => 'new_groups_name', :locals => {:course_groups => @course_groups}) %>");
 $("#group_children_list").html("<%= escape_javascript( render :partial => 'layouts/group_children_list', :locals => {:course => @course})%>");
+$("#student_number").html("<%= studentCount(@course) %>");
diff --git a/public/stylesheets/css/common.css b/public/stylesheets/css/common.css
index 62f6805f3..afe6192fb 100644
--- a/public/stylesheets/css/common.css
+++ b/public/stylesheets/css/common.css
@@ -195,6 +195,7 @@ h4{ font-size:14px;}/*color:#3b3b3b;*/
 .mt6{ margin-top:6px;}
 .mt7 {margin-top:7px;}
 .mt8{ margin-top:8px !important;}
+.mt9{ margin-top:9px !important;}
 .mt10{ margin-top:10px !important;}
 .mt12 { margin-top:12px !important;}
 .mt15 {margin-top:15px;}