diff --git a/app/views/exercise/index.html.erb b/app/views/exercise/index.html.erb
index 8e8940f33..14db03e09 100644
--- a/app/views/exercise/index.html.erb
+++ b/app/views/exercise/index.html.erb
@@ -57,34 +57,6 @@
         }
     }
 
-    function close_poll(poll_id)
-    {
-        $('#ajax-modal').html("<div id='popbox02'>" +
-                "<div class='upload_con'>" +
-                "<div class='upload_box'>" +
-                "<p class='polls_box_p'>问卷关闭后学生将不能继续提交问卷，<br />是否确定关闭该问卷？</p>" +
-                "<div class='polls_btn_box'>" +
-                "<a href='/poll/"+ poll_id +"/close_poll' class='upload_btn' onclick='clickCanel();' data-remote='true'>确&nbsp;&nbsp;定</a>" +
-                "<a class='upload_btn upload_btn_grey' onclick='clickCanel();'>取&nbsp;&nbsp;消</a>" +
-                "</div>" +
-                "<div class='cl'></div>" +
-                "</div>" +
-                "</div>" +
-                "</div>");
-        showModal('ajax-modal', '310px');
-        $('#ajax-modal').css('height','120px');
-        $('#ajax-modal').siblings().remove();
-        $('#ajax-modal').before("<span style='float: right;cursor:pointer;'>" +
-                "<a href='javascript:' onclick='clickCanel();'><img src='/images/bid/close.png' width='26px' height='26px' /></a></span>");
-        $('#ajax-modal').parent().removeClass("alert_praise");
-        $('#ajax-modal').parent().css("top","").css("left","");
-        $('#ajax-modal').parent().addClass("popbox_polls");
-    }
-
-    function closeModal()
-    {
-        hideModal($("#popbox_upload"));
-    }
 </script>
 <div class="polls_content02" id="exercise">
   <%= render :partial => 'exercises_list'%>