diff --git a/app/views/courses/homework.html.erb b/app/views/courses/homework.html.erb
index 751558237..f5fe74953 100644
--- a/app/views/courses/homework.html.erb
+++ b/app/views/courses/homework.html.erb
@@ -29,10 +29,22 @@
         <div class="cl"></div>
         <p  id="bid_description_<%= bid.id%>" class="news_description mt5">
           <%= textilizable bid, :description %>
-          <br /> <%= l(:label_create_time)%> ：  <%= format_time bid.created_on%></p>
-        <div class="news_foot" onclick="bid_show_more_des(<%= bid.id%>);"><%= l(:label_expend_information)%>
-          <span class="g-arr-down"><img src="/images/jiantou.jpg" width="12" height="6" /></span>
+        <div class="news_foot c_red" onclick="bid_show_more_des(<%= bid.id%>);" style="cursor:pointer;">
+          <%= l(:button_more)%>...
+          <span class="g-arr-down"></span>
         </div>
+        <span class="fl"><%= l(:label_end_time)%>：<%= bid.deadline%></span>
+        <% if betweentime(bid.deadline) < 0 %>
+            <span class='fr mr10 pr_join_span '>
+              <%= l(:label_commit_limit)%>
+            </span>
+        <% else %>
+            <script type="text/javascript">
+                window.setInterval(function(){show_bid_dead_line(<%= bid.deadline.year%>,<%= bid.deadline.month%>,<%= bid.deadline.day + 1%>,"bid_deadline_<%= bid.id%>");},1000)
+            </script>
+            <div id="bid_deadline_<%= bid.id%>">
+            </div>
+        <% end %>
       </div>
       <div class="cl"></div>
     </div>
diff --git a/public/javascripts/course.js b/public/javascripts/course.js
index f6bc4933c..4a9854fcd 100644
--- a/public/javascripts/course.js
+++ b/public/javascripts/course.js
@@ -35,7 +35,7 @@ $(document).ready(function () {
     $("#RSide").css("min-height",$("#LSide").height()-30);
 });
 //课程作业结束时间倒计时
-function ShowCountDown(year,month,day,divname)
+function show_bid_dead_line(year,month,day,divname)
 {
     var now = new Date();
     var endDate = new Date(year, month-1, day);
@@ -45,11 +45,13 @@ function ShowCountDown(year,month,day,divname)
     var hour=Math.floor((leftsecond-day1*24*60*60)/3600);
     var minute=Math.floor((leftsecond-day1*24*60*60-hour*3600)/60);
     var second=Math.floor(leftsecond-day1*24*60*60-hour*3600-minute*60);
-    $("#"+divname).html("<span style='color: #acaeb1;'>作业提交还剩&nbsp;:</span>&nbsp;<span style='color: red;'>"
-    +day1+"&nbsp;</span><span style='color: #acaeb1;'>天</span><span style='color: red;'>&nbsp;"
-    +hour+"&nbsp;</span><span style='color: #acaeb1;'>时</span><span style='color: red;'>&nbsp;"
-    +minute+"&nbsp;</span><span style='color: #acaeb1;'>分</span><span style='color: red;'>&nbsp;"
-    +second+"&nbsp;</span><span style='color: #acaeb1;'>秒</span>");
+    $("#"+divname).html("<form name='formnow' class='fr'>"
+    + "<input class='c_orange' type='text' style='border:0;' size='1' value='"+day1+"' > 天"
+    + "<input class='c_orange' type='text' style='border:0;' size='1' value='"+hour+"' > 小时"
+    + "<input class='c_orange' type='text' style='border:0;' size='1' value='"+minute+"' > 分"
+    + "<input class='c_orange' type='text' style='border:0;' size='1' value='"+second+"' > 秒"
+    + "</form>"
+    + "<p class='fr'>作业提交还剩：</p>");
 }
 //验证新建作业的名字
 function regex_bid_name()