diff --git a/app/controllers/admin/import_controller.rb b/app/controllers/admin/import_controller.rb
index 6027b46..7180442 100644
--- a/app/controllers/admin/import_controller.rb
+++ b/app/controllers/admin/import_controller.rb
@@ -85,6 +85,8 @@ class Admin::ImportController < OrbitAdminController
     if archive_file.nil?
       archive_file = ArchiveFile.new
       archive_file.rss2_sn = file['Sn']
+    else
+      archive_file.archive_file_multiples.destroy_all
     end
 
     archive_file.title_translations = file['title']
@@ -122,6 +124,9 @@ class Admin::ImportController < OrbitAdminController
     if bulletin.nil?
       bulletin = Bulletin.new
       bulletin.rss2_sn = news['Sn']
+    else
+      bulletin.bulletin_links.destroy_all
+      bulletin.bulletin_files.destroy_all
     end
     bulletin.update_user = current_user
     bulletin.title_translations = news['Title']
diff --git a/app/views/admin/import/index.html.erb b/app/views/admin/import/index.html.erb
index f75c837..312e380 100644
--- a/app/views/admin/import/index.html.erb
+++ b/app/views/admin/import/index.html.erb
@@ -148,7 +148,7 @@
     <div id="links-module" class="module" onclick="importModule('links')">
       <div class="lead muted">
         <i class="icons-link"></i><br/>
-        <%= t("web_link.web_link") %>
+        <%= t("web_resource") %>
       </div>
     </div>
   </div>
@@ -175,7 +175,7 @@
 <script type="text/javascript">
   var url;
   var categories=null;
-  var dataList=null;
+  var dataList=Array();
   var module;
   var progress = 0;
 
@@ -364,7 +364,7 @@
 
   var importModule = function(m){
     module = m;
-    dataList=null;
+    dataList=Array();
     categories=null;
 
     $('#import-progress i').attr('class', $('#'+m+'-module i').attr('class')+' module-icon');
@@ -379,69 +379,82 @@
   }
 
   var getModuleCategories= function(){
-    $("#import-progress .bar").css('width','0%');
     $("#import-progress-text").html("Importing Categories<br/><br/>");
 
     $.ajax({
       type: 'GET',
       dataType: 'json',
       url: '<%= admin_import_module_categories_path %>',
-      data: {module: module, url: url+'?module='+module+'&type=categories'},
-      success: function(data){
-        $("#import-progress .bar").css('width','100%');
-        $("#import-progress-text").html("Done<br/><br/>");
-        categories = data;
-        getModuleDataList();
-      }
+      data: {module: module, url: url+'?module='+module+'&type=categories'}
+    }).done(function(data){
+      $("#import-progress-text").html("Done<br/><br/>");
+      categories = data;
+      getModuleDataList();
     });
   }
 
   var getModuleDataList = function(){
-    $("#import-progress .bar").css('width','0%');
-
     $.ajax({
       type: 'GET',
       dataType: 'json',
       url: '<%= admin_import_module_data_list_path %>',
-      data: {module: module, url: url+'?module='+module+'&type=dataList'},
-      success: function(data){
-        dataList = data;
-        importModuleDatas();
+      data: {module: module, url: url+'?module='+module+'&type=dataList'}
+    }).done(function(data){
+      for(Sn in data){
+        dataList.push({'Sn':Sn, 'category':data[Sn]});
       }
+      importModuleDatas();
     });
   }
 
   var importModuleDatas = function(){
-    $("#import-progress .bar").css('width','0%');
+    progress = 0;
     $("#import-progress-text").html("Start import...<br/><br/>");
 
     if(dataList!=null && categories!=null){
-      $.each(dataList, function(key, val){
-        $.ajax({
-          type: 'GET',
-          dataType: 'json',
-          async: true,
-          url: '<%= admin_import_module_data_path %>?&category='+categories[val]['id'],
-          data: {module: module, url: url+'?module='+module+'&type=data&Sn='+key},
-          success: function(data){
-            progress++;
-            percentage = parseInt((progress/Object.keys(dataList).length)*100)+'%';
-            $("#import-progress .bar").css('width',percentage);
-            $("#import-progress-text").html(progress+' / '+Object.keys(dataList).length+'<br/>'+percentage);
-            if(percentage=="100%"){
-              $("#import-progress").delay(1000).fadeOut(300,function(){
-                $("#import-head").fadeIn(0);
-                $("#import-modules").fadeIn(300);
-              });
-            }
-          }
-        });
-      });
+      importModuleData();
     }else{
       setTimeout("importModuleDatas()", 3000);
     }
   }
 
+  var importModuleData = function(){
+    if(progress>=dataList.length) return;
+
+    var data = dataList[progress];
+    var category_id = categories[data['category']]['id'];
+    var Sn = data['Sn'];
+
+    percentage = parseInt((progress/dataList.length)*100)+'%';
+    $("#import-progress-text").html(progress+' / '+dataList.length+'<br/>'+percentage);
+
+    $.ajax({
+      type: 'GET',
+      dataType: 'json',
+      url: '<%= admin_import_module_data_path %>',
+      data: {
+        module: module, 
+        url: url+'?module='+module+'&type=data&Sn='+Sn,
+        type: 'data',
+        category: category_id
+      }
+    }).done(function(data){
+      progress++;
+      percentage = parseInt((progress/dataList.length)*100)+'%';
+      $("#import-progress .bar").css('width',percentage);
+      $("#import-progress-text").html(progress+' / '+dataList.length+'<br/>'+percentage);
+
+      if(percentage=="100%"){
+        $("#import-progress").delay(1000).fadeOut(300,function(){
+          $("#import-head").fadeIn(0);
+          $("#import-modules").fadeIn(300);
+        });
+      }
+
+      importModuleData();
+    });
+  }
+
   var checkSiteUrl = function(){
     url = $(".import-url").val();
     url = (url[url.length-1]=='/') ? url+'export/' : url+'/export/';