diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index e0c8f834a..85879d5fb 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -1842,11 +1842,11 @@ end
     if params[:property]
       all_homework_ids = @homeworks.empty? ? "(-1)" : "(" + @homeworks.map{|h| h.id}.join(",") + ")"
       if params[:property] == "1"
-        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 1 order by created_at desc")
+        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 1")
       elsif params[:property] == "2"
-        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 2 order by created_at desc")
+        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 2")
       elsif params[:property] == "3"
-        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 3 order by created_at desc")
+        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 3")
       end
     end
     @limit = 10
@@ -1875,11 +1875,11 @@ end
     if params[:property]
       all_homework_ids = @homeworks.empty? ? "(-1)" : "(" + @homeworks.map{|h| h.id}.join(",") + ")"
       if params[:property] == "1"
-        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 1 order by created_at desc")
+        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 1")
       elsif params[:property] == "2"
-        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 2 order by created_at desc")
+        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 2")
       elsif params[:property] == "3"
-        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 3 order by created_at desc")
+        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 3")
       end
     end
     @limit = 10
@@ -1913,11 +1913,11 @@ end
     if params[:property]
       all_homework_ids = @homeworks.empty? ? "(-1)" : "(" + @homeworks.map{|h| h.id}.join(",") + ")"
       if params[:property] == "1"
-        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 1")
+        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 1 order by created_at desc")
       elsif params[:property] == "2"
-        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 2")
+        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 2 order by created_at desc")
       elsif params[:property] == "3"
-        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 3")
+        @homeworks = HomeworkCommon.find_by_sql("select * from homework_commons where id in #{all_homework_ids} and homework_type = 3 order by created_at desc")
       end
     end
     @limit = 10
diff --git a/public/assets/wechat/project_discussion.html b/public/assets/wechat/project_discussion.html
index 4812f750d..597a333bf 100644
--- a/public/assets/wechat/project_discussion.html
+++ b/public/assets/wechat/project_discussion.html
@@ -92,7 +92,7 @@
                 <div class="post-reply-row border-bottom-none">
                     <div class="post-input-container">
                         <div class="copy-input-container"><textarea class="copy-input"></textarea></div>
-                        <textarea input-auto type="text" class="post-reply-input" id="postInput1" ng-model="object.comment" placeholder="输入回复内容~" /></textarea>
+                        <textarea input-auto type="text" class="post-reply-input" id="postInput1" ng-model="object.comment" ng-change="onPostChange(object.comment, '{{object.comment}}')" placeholder="{{replytip}}" /></textarea>
                         <button ng-click="addReply(object,0)" ng-disabled="object.disabled" ng-hide="object.disabled" class="post-reply-submit fr border-radius">提交</button>
                         <button ng-disabled="object.disabled" ng-hide="!object.disabled" class="post-reply-submit bg-grey fr border-radius">提交</button>
                         <div class="cl"></div>
diff --git a/public/assets/wechat/templates/at.html b/public/assets/wechat/templates/at.html
index 5d26b73a6..8ca4fd44d 100644
--- a/public/assets/wechat/templates/at.html
+++ b/public/assets/wechat/templates/at.html
@@ -4,7 +4,7 @@
         <div class="class-detail-name"><span class="course-name-width hidden inline-block">选择您要@的人</span>
             <button ng-click="cancelAt()" class="cancel-btn-new fr border-radius">取消</button>
         </div>
-        <ul class="weixin-users-all">
+        <ul class="weixin-users-all" id="at-list">
             <li ng-repeat="person in at_persons track by $index" ng-click="selectAtPerson($index)"><p class="fl ">{{person.name}}</p><p  class="fl ">（{{person.login}}）</p></li>
         </ul>
     </div>
diff --git a/public/javascripts/application.js b/public/javascripts/application.js
index 479905d3c..6c00676cb 100644
--- a/public/javascripts/application.js
+++ b/public/javascripts/application.js
@@ -950,10 +950,16 @@ $(function(){
                 return;
             }
 
-            if(res.length<1){
-                return;
+            if (res.err == -2) {
+              alert("该作业没有任何附件可下载");
+              return;
             }
 
+            if(res.length < 1 ){
+                alert("该作业没有任何附件可下载");
+                return;
+            }
+            
             if(res.length==1){
               if(res[0].base64file){
                 location.href = encodeHomeworkUrl(res[0].base64file, true);return;
@@ -983,10 +989,22 @@ $(function(){
     $('#download_homework_attachments').bind('ajax:complete', function (event, data, status, xhr) {
         if(status == 'success'){
             var res = JSON.parse(data.responseText);  
-            if(res.length == null){
-                alert("该作业没有任何附件可下载");
+
+            if(res.err == -1){
+                var htmlvalue = '<div id="muban_popup_box" style="width:auto;"><div class="muban_popup_top"><h3 class="fl">温馨提示</h3><a href="javascript:void(0);" class="muban_icons_close fr"></a></div>'+
+                    '<div class="clear mt15 mr10 ml10"><p class="text_c f14">因附件资源太大，请通过微信或者QQ联系Trustie管理员</br>辅助您完成下载</p><div class="cl"></div>'+
+                    '<a href="javascript:void(0);" class="fr sy_btn_blue mt10" style="margin-right: 143px;" onclick="hideModal();">确&nbsp;&nbsp;定</a></div></div>';
+                pop_box_new(htmlvalue,380,166);
+                return;
             }
-            else if(res.length<1){
+
+            if (res.err == -2) {
+              alert("该作业没有任何附件可下载");
+              return;
+            }
+
+            if(res.length < 1 ){
+                alert("该作业没有任何附件可下载");
                 return;
             }
             else
diff --git a/public/javascripts/wechat/others/factory.js b/public/javascripts/wechat/others/factory.js
index 5d4800ac3..cd4bf78a9 100644
--- a/public/javascripts/wechat/others/factory.js
+++ b/public/javascripts/wechat/others/factory.js
@@ -93,7 +93,7 @@ app.factory('rms', function(){
     return {save: save, get: get};
 });
 
-app.factory('common', ['$http', 'auth', '$routeParams','rms','config','wx','$location', function($http, auth, $routeParams,rms,config,wx,$location){
+app.factory('common', ['$http', '$location', '$anchorScroll', 'auth', '$routeParams','rms','config','wx','$location', function($http, $location, $anchorScroll, auth, $routeParams,rms,config,wx,$location){
     var addCommonReply = function(id, type, data,args,reply_type, beforeReply, cb){
         if(!data.comment || data.comment.length<=0){
             return;
@@ -523,6 +523,11 @@ app.factory('common', ['$http', 'auth', '$routeParams','rms','config','wx','$loc
             if(newValue.length > oldValue.length && newValue.match(/@$/)=='@'){
                 console.log('@ fire');
                 vm.showAtDialog = true;
+
+                window.scrollTo(0,0);
+
+
+                $location.hash();
                 if(!vm.at_persons){
                     $http.get('/at/'+$routeParams.id+'.json?type='+atType).then(function (response) {
                         vm.at_persons = response.data;