diff --git a/app/views/attachments/_links.html.erb b/app/views/attachments/_links.html.erb
index 4c2ee0c8f..02c7ba4dc 100644
--- a/app/views/attachments/_links.html.erb
+++ b/app/views/attachments/_links.html.erb
@@ -9,7 +9,7 @@
         <% if options[:length] %>
           <%= link_to_short_attachment attachment, :class => 'icon icon-attachment', :download => true,:length => options[:length] -%>
         <% else %>
-          <%= link_to_short_attachment attachment, :class => 'icon icon-attachment', :download => true -%>
+          <%= link_to_short_attachment attachment, :class => 'icon icon-attachment', :download => true, :length => 32 -%>
         <% end %>
       </span>
   <%if is_float%>
@@ -26,9 +26,7 @@
   <span title="<%= attachment.description%>">
     <%= h(truncate(" - #{attachment.description}", length: options[:length] ? options[:length]:15, omission: '...')) unless attachment.description.blank? %>
   </span>
-  <span class="size">(
-    <%= number_to_human_size attachment.filesize %>)
-  </span>
+  <span class="size">(<%= number_to_human_size attachment.filesize , :precision => 0 %>)</span>
   <% if options[:deletable] %>
   	<% if attachment.container_type == 'HomeworkAttach' %>
     <%= link_to image_tag('delete.png'), {:controller => 'attachments', :action => 'delete_homework', :id => attachment.id},
diff --git a/app/views/layouts/_base_feedback.html.erb b/app/views/layouts/_base_feedback.html.erb
index 6a0e79673..0ddb5913f 100644
--- a/app/views/layouts/_base_feedback.html.erb
+++ b/app/views/layouts/_base_feedback.html.erb
@@ -85,13 +85,13 @@
 				show_btn.css('width', 25);
 
 			}
-			//close???
+			//close
 			closeBtn.bind("click",function(){
 				sideContent.animate({width: '0px'},"fast");
             	show_btn.stop(true, true).delay(300).animate({ width: '25px'},"fast");
             	cookiesave('minStatue','true','','','');
 			});
-			//show???
+			//show
 			 show_btn.bind("click",function() {
 	            $(this).animate({width: '0px'},"fast");
 	            sideContent.stop(true, true).delay(200).animate({ width: '154px'},"fast");
diff --git a/app/views/layouts/_point_browser.html.erb b/app/views/layouts/_point_browser.html.erb
index e936a6b11..3ad478928 100644
--- a/app/views/layouts/_point_browser.html.erb
+++ b/app/views/layouts/_point_browser.html.erb
@@ -9,38 +9,87 @@
       .update{ border-bottom:1px solid #d7d7d7; color:#fea254; text-align:center; width:100%; font-size:10px; height:30px; background:#fdffd9; padding:2px 0;z-index:1000;}
       a.green_btn{ padding:2px 10px; background:#3caf3f; font-size:12px;color:#fff;-moz-border-radius:2px;  -webkit-border-radius:2px;  border-radius:2px;}
       a:hover.green_btn{ background:#289c2b;}
-      a.close_btn{ background:url(images/floatbox/img_floatbox.png) -20px -35px no-repeat; display:block; width:16px; height:16px;  float:right; margin:7px 5px 0 0;}
-      a:hover.close_btn{ background:url(images/floatbox/img_floatbox.png) -20px -63px no-repeat;}
+      a.update_close_btn{ background:url(images/floatbox/img_floatbox.png) -20px -35px no-repeat; display:block; width:16px; height:16px;  float:right; margin:7px 5px 0 0;}
+      a:hover.update_close_btn{ background:url(images/floatbox/img_floatbox.png) -20px -63px no-repeat;}
   </style>
+  <script type="text/javascript" src="/javascripts/jquery.min.js"></script>
   <script type="text/javascript">
+      //升级提示关闭
       function close_window(){
           $('#light').slideUp(400);
+          cookiesave('closeStatue','true','','','');
       }
-      if ((navigator.userAgent.indexOf('MSIE 8.0') >= 0) && (navigator.userAgent.indexOf('Opera') < 0))
-      {alert('你是使用IE')}else
-      if (navigator.userAgent.indexOf('Firefox') >= 0)
-      Document.html{
-          div class="update" id="light">
-                  <p>您的浏览器版本过低，建议升级您的浏览器。
-      <a href="#" onClick="close_window();" class="close_btn" ></a>
-          </p>
-          <div class="cl"></div>
-          </div>
+
+      function cookiesave(n, v, mins, dn, path)
+      {
+          if(n)
+          {
+
+              if(!mins) mins = 24 * 60;
+              if(!path) path = "/";
+              var date = new Date();
+
+              date.setTime(date.getTime() + (mins * 60 * 1000));
+
+              var expires = "; expires=" + date.toGMTString();
+
+              if(dn) dn = "domain=" + dn + "; ";
+              document.cookie = n + "=" + v + expires + "; " + dn + "path=" + path;
+
+          }
       }
-      {alert('你是使用Firefox')}else
-      if (navigator.userAgent.indexOf('Opera') >= 0){alert('你是使用Opera')}else
-      {alert('你是使用其他的浏览器浏览网页！')}
+      function cookieget(n)
+      {
+          var name = n + "=";
+          var ca = document.cookie.split(';');
+          for(var i=0;i<ca.length;i++) {
+              var c = ca[i];
+              while (c.charAt(0)==' ') c = c.substring(1,c.length);
+              if (c.indexOf(name) == 0){
+                  return c.substring(name.length,c.length);}
+
+          }
+          return false;
+      }
+
+      $(document).ready(function(){
+          var closeStatue = false;
+          var u = window.navigator.userAgent.toLocaleLowerCase(),
+                  msie = /(msie) ([\d.]+)/,
+                  chrome = /(chrome)\/([\d.]+)/,
+                  firefox = /(firefox)\/([\d.]+)/,
+                  safari = /(safari)\/([\d.]+)/,
+                  opera = /(opera)\/([\d.]+)/,
+                  ie11 = /(trident)\/([\d.]+)/,
+                  b = u.match(msie)||u.match(chrome)||u.match(firefox)||u.match(safari)||u.match(opera)||u.match(ie11);
+          var browser = b[1];
+          var version = parseInt(b[2]);
+          if (b == null) {
+              return { browser : "", version : "0" };
+          }
+          //test firefox
+          if (browser == "firefox"&& cookieget('closeStatue') == false) {
+              /* $("#update_info").html("您当前使用的是"+browser+"浏览器。"+"主版本号为："+version); */
+              cookiesave('closeStatue','true','','','');
+          }
+          if (browser == "msie" && version<= 8 && cookieget('closeStatue') == false) {
+              cookiesave('closeStatue','false','','','');
+
+           }
+          // test IE11
+          if (browser == "trident" && version<= 7 && cookieget('closeStatue') == false) {
+              /* return true; */
+              cookiesave('closeStatue','true','','','');
+          }
+          if( cookieget('closeStatue') == 'false' )
+          {
+              $("#update_info").append("<div class='update' id='light'><span style='font-size: 14px;line-height:2.2;' id='browser_info'>您当前使用的是IE8浏览器或IE低版本浏览器，建议升级您的浏览器。</span><a href='#' onClick='close_window();' class='update_close_btn' ></a><div class='cl'></div></div>");
+          }
+      })
   </script>
 </head>
 
 <body style=" height:1500px;">
-<div class="update" id="light">
-  <span style="font-size: 14px;line-height:2.2;">您当前使用的是IE8浏览器，建议升级您的浏览器。
-    <a href="#" onClick="close_window();" class="close_buttton" ></a>
-  </span>
-  <div class="cl"></div>
-</div>
-
+<div id="update_info"></div>
 </body>
-</html>
-<!DOCTYPE html PUBLIC "-
\ No newline at end of file
+</html>
\ No newline at end of file
diff --git a/app/views/layouts/base_homework.html.erb b/app/views/layouts/base_homework.html.erb
index a858c045e..bb7b18a4a 100644
--- a/app/views/layouts/base_homework.html.erb
+++ b/app/views/layouts/base_homework.html.erb
@@ -178,7 +178,7 @@
                             </tr>
                             <tr>
                               <td valign="top" colspan="2">
-                                <% options = {:author => true,:deletable => (@bid.author.id == User.current.id || User.current.admin? ? true : false),:wrap => true,:length => 7} %>
+                                <% options = {:author => true,:deletable => (@bid.author.id == User.current.id || User.current.admin? ? true : false),:wrap => true,:length => 15} %>
                                 <%= render :partial => 'attachments/links', :locals => {:attachments => @bid.attachments, :options => options} %>
                               </td>
                             </tr>
diff --git a/config/locales/projects/en.yml b/config/locales/projects/en.yml
index 94344a8d6..9eadfc46f 100644
--- a/config/locales/projects/en.yml
+++ b/config/locales/projects/en.yml
@@ -136,7 +136,11 @@ en:
   #  项目托管平台
   #
   #  问题跟踪
+  label_issues_sum: 'Total'
+  lable_issues_undo: 'Unresolved：'
   label_successful_create: Successfully created
+  
+  
   #  
 
 
diff --git a/config/locales/projects/zh.yml b/config/locales/projects/zh.yml
index 880727bd9..9f1a95201 100644
--- a/config/locales/projects/zh.yml
+++ b/config/locales/projects/zh.yml
@@ -49,8 +49,7 @@ zh:
   
   label_issue_tracking: 问题跟踪
   label_release_issue: 发布问题
-  label_issues_sum: 问题总数：
-  lable_issues_undo: 未解决：
+
 
   project_module_boards: 讨论区
   project_module_boards_post: 发帖
@@ -144,6 +143,9 @@ zh:
   #
   #  问题跟踪
   label_successful_create: 创建成功
+  label_issues_sum: '问题总数'
+  lable_issues_undo: '未解决：'
+ 
   #  
 
 
diff --git a/public/stylesheets/application.css b/public/stylesheets/application.css
index c4be244fa..b4bd12d34 100644
--- a/public/stylesheets/application.css
+++ b/public/stylesheets/application.css
@@ -137,7 +137,7 @@ a:hover.more{ color:#64bdd9;}
 .problem_pic:hover{border:1px solid #64bdd9;}
 .problem_txt{ width:610px; margin-left:10px; color:#777777;}
 .problem_name{ color:#ff5722 !important;}
-.problem_line{margin-top:5px;}
+.problem_line{margin-top:5px;float:left;}
 .problem_name:hover{ color:#d33503;}
 .problem_tit{ color:#0781b4 !important; width:430px; display:block; overflow:hidden; white-space: nowrap; text-overflow:ellipsis;}
 .problem_tit:hover{ color:#09658c !important; }