用户作品提交完成后，框框自动收起

app/views/student_work/_add_score.html.erb

@@ -16,7 +16,7 @@
             <%= render :partial => 'student_work/student_work_attachment_form', :locals => {:work => work,:score => score} %>
           </div>
       <%end%>
-      <a href="javascript:void(0);" class="blue_n_btn fr evaluation_submit" onclick="$(this).parent().parent().submit();">提交</a>
+      <a href="javascript:void(0);" class="blue_n_btn fr evaluation_submit" onclick="$(this).parent().parent().submit();$('#about_hwork_<%= @work.id%>').html('');">提交</a>
       <div class="cl"></div>
     </li>
 <% end%>