diff --git a/module/doc/control.php b/module/doc/control.php
index e1c16906d9..19708b4cd9 100644
--- a/module/doc/control.php
+++ b/module/doc/control.php
@@ -100,7 +100,7 @@ class doc extends control
             $productID = $lib->product;
             $projectID = $lib->project;
 
-            if(($from == 'product' or $from == 'project') and $type != $from) $from = 'doc';
+            if($type != 'product' and $type != 'project') $from = 'doc';
         }
 
         $this->libs = $this->doc->getLibs($type, '', $libID);
@@ -507,6 +507,40 @@ class doc extends control
         }
     }
 
+    /**
+     * Delete file for doc.
+     * 
+     * @param  int    $docID 
+     * @param  int    $fileID 
+     * @param  string $confirm 
+     * @access public
+     * @return void
+     */
+    public function deleteFile($docID, $fileID, $confirm = 'no')
+    {
+        $this->loadModel('file');
+        if($confirm == 'no')
+        {
+            die(js::confirm($this->lang->file->confirmDelete, inlink('deleteFile', "docID=$docID&fileID=$fileID&confirm=yes")));
+        }
+        else
+        {
+            $docContent = $this->dao->select('t1.*')->from(TABLE_DOCCONTENT)->alias('t1')
+                ->leftJoin(TABLE_DOC)->alias('t2')->on('t1.doc=t2.id and t1.version=t2.version')
+                ->where('t2.id')->eq($docID)
+                ->fetch();
+            unset($docContent->id);
+            $docContent->files    = trim(str_replace(",{$fileID},", ',', ",{$docContent->files},"), ',');
+            $docContent->version += 1;
+            $this->dao->insert(TABLE_DOCCONTENT)->data($docContent)->exec();
+            $this->dao->update(TABLE_DOC)->set('version')->eq($docContent->version)->where('id')->eq($docID)->exec();
+
+            $file = $this->file->getById($fileID);
+            $this->loadModel('action')->create($file->objectType, $file->objectID, 'deletedFile', '', $extra=$file->title);
+            die(js::locate($this->createLink('doc', 'view', "docID=$docID"), 'parent'));
+        }
+    }
+
     /**
      * Collect doc, doclib or module of doclib.
      *
diff --git a/module/doc/js/view.js b/module/doc/js/view.js
index 2c353f2a50..34edfddc4f 100644
--- a/module/doc/js/view.js
+++ b/module/doc/js/view.js
@@ -45,5 +45,5 @@ $(function()
 function deleteFile(fileID)
 {
     if(!fileID) return;
-    hiddenwin.location.href =createLink('file', 'delete', 'fileID=' + fileID);
+    hiddenwin.location.href =createLink('doc', 'deleteFile', 'docID=' + docID + '&fileID=' + fileID);
 }
diff --git a/module/doc/lang/zh-cn.php b/module/doc/lang/zh-cn.php
index 3b6b511d69..24f6e7741c 100644
--- a/module/doc/lang/zh-cn.php
+++ b/module/doc/lang/zh-cn.php
@@ -78,8 +78,6 @@ $lang->doc->editType         = '编辑分类';
 $lang->doc->deleteType       = '删除分类';
 $lang->doc->addType          = '增加分类';
 $lang->doc->childType        = '子分类';
-$lang->doc->editType         = '维护分类';
-$lang->doc->deleteType       = '删除分类';
 $lang->doc->collect          = '收藏';
 $lang->doc->cancelCollection = '取消收藏';
 $lang->doc->deleteFile       = '删除附件';
diff --git a/module/doc/model.php b/module/doc/model.php
index ad9d560288..e329e9b2e7 100644
--- a/module/doc/model.php
+++ b/module/doc/model.php
@@ -71,6 +71,7 @@ class docModel extends model
                 {
                     $allLibGroups  = $this->getAllLibGroups($libID);
                     $currentGroups = $allLibGroups[$type];
+                    /* Append closed project. */
                     if(!isset($currentGroups[$currentLib]) and $type == 'project')
                     {
                         $project = $this->dao->select('id,name,status')->from(TABLE_PROJECT)->where('id')->eq($currentLib)->fetch();
diff --git a/module/doc/view/view.html.php b/module/doc/view/view.html.php
index 8f155c7506..0d1be15e9d 100644
--- a/module/doc/view/view.html.php
+++ b/module/doc/view/view.html.php
@@ -18,6 +18,7 @@
 js::set('fullscreen', $lang->doc->fullscreen);
 js::set('retrack', $lang->doc->retrack);
 js::set('sysurl', common::getSysUrl());
+js::set('docID', $doc->id);
 ?>
 <div id="mainMenu" class="clearfix">
   <div class="btn-toolbar pull-left">
@@ -34,12 +35,12 @@ js::set('sysurl', common::getSysUrl());
       $i = 1;
       foreach($actions as $action)
       {
-          if($action->action == 'created')
+          if($action->action == 'created' or $action->action == 'deletedfile' or $action->action == 'commented')
           {
               $versions[$i] =  "#$i " . zget($users, $action->actor) . ' ' . substr($action->date, 2, 14);
               $i++;
           }
-          if($action->action == 'edited')
+          elseif($action->action == 'edited')
           {
               foreach($action->history as $history)
               {