diff --git a/module/bug/js/browse.js b/module/bug/js/browse.js
index 4dc58de983..db0315a2f4 100644
--- a/module/bug/js/browse.js
+++ b/module/bug/js/browse.js
@@ -11,10 +11,11 @@ $(document).ready(function()
     }).on('keyup change paste', 'input', function()
     {
         var val = $(this).val().toLowerCase();
+        if(val == '') return $('.assign-menu > .option').removeClass('hide');
         $('.assign-menu > .option').each(function()
         {
             var $option = $(this);
-            $option.toggleClass('hide', $option.text().toLowerCase().indexOf(val) < 0 && $option.data('key').toLowerCase().indexOf(val) < 0);
+            $option.toggleClass('hide', $option.text().toLowerCase().indexOf(val) < 0 || $option.data('key').toLowerCase().indexOf(val) < 0);
         });
     });
 });
diff --git a/module/product/control.php b/module/product/control.php
index dfc74b85ee..deec94e732 100644
--- a/module/product/control.php
+++ b/module/product/control.php
@@ -168,7 +168,7 @@ class product extends control
         $this->view->moduleTree    = $this->tree->getTreeMenu($productID, $viewType = 'story', $startModuleID = 0, array('treeModel', 'createStoryLink'));
         $this->view->parentModules = $this->tree->getParents($moduleID);
         $this->view->pager         = $pager;
-        $this->view->users         = $this->user->getPairs('noletter');
+        $this->view->users         = $this->user->getPairs('nodeleted|noletter|pofirst');
         $this->view->orderBy       = $orderBy;
         $this->view->browseType    = $browseType;
         $this->view->moduleID      = $moduleID;
diff --git a/module/product/css/browse.css b/module/product/css/browse.css
new file mode 100644
index 0000000000..c48171968a
--- /dev/null
+++ b/module/product/css/browse.css
@@ -0,0 +1,4 @@
+.assign-menu {min-width: 150px; overflow: hidden; max-height: 305px}
+.assign-menu.with-search {padding-bottom: 34px;}
+.assign-menu > .assign-search {padding: 0; position: absolute; z-index: 0; bottom: 0; left: 0; right: 0}
+.assign-menu > .assign-search .input-group-addon {position: absolute; right: 10px; top: 0; z-index: 10; background: none; border: none; color: #666}
diff --git a/module/product/js/browse.js b/module/product/js/browse.js
index 55a80528c5..1f9386fd99 100644
--- a/module/product/js/browse.js
+++ b/module/product/js/browse.js
@@ -1,4 +1,19 @@
 $(function()
 {
     if(browseType == 'bysearch') ajaxGetSearchForm();
+
+    $('.assign-search').click(function(e)
+    {
+        e.stopPropagation();
+        return false;
+    }).on('keyup change paste', 'input', function()
+    {
+        var val = $(this).val().toLowerCase();
+        if(val == '') return $('.assign-menu > .option').removeClass('hide');
+        $('.assign-menu > .option').each(function()
+        {
+            var $option = $(this);
+            $option.toggleClass('hide', $option.text().toLowerCase().indexOf(val) < 0 || $option.data('key').toLowerCase().indexOf(val) < 0);
+        });
+    });
 })
diff --git a/module/product/view/browse.html.php b/module/product/view/browse.html.php
index cfd30b5bf2..efd88d4008 100644
--- a/module/product/view/browse.html.php
+++ b/module/product/view/browse.html.php
@@ -220,6 +220,28 @@
                 {
                     echo '<li>' . html::a('javascript:;', $lang->story->stageAB, '', $class) . '</li>';
                 }
+
+                if(common::hasPriv('story', 'batchAssignTo'))
+                {
+                      $withSearch = count($users) > 10;
+                      $actionLink = $this->createLink('story', 'batchAssignTo', "productID=$productID");
+                      echo html::select('assignedTo', $users, '', 'class="hidden"');
+                      echo "<li class='dropdown-submenu'>";
+                      echo html::a('javascript::', $lang->story->assignedTo, 'id="assignItem"');
+                      echo "<ul class='dropdown-menu assign-menu" . ($withSearch ? ' with-search':'') . "'>";
+                      foreach ($users as $key => $value)
+                      {
+                          if(empty($key)) continue;
+                          echo "<li class='option' data-key='$key'>" . html::a("javascript:$(\"#assignedTo\").val(\"$key\");setFormAction(\"$actionLink\")", $value, '', '') . '</li>';
+                      }
+                      if($withSearch) echo "<li class='assign-search'><div class='input-group input-group-sm'><input type='text' class='form-control' placeholder=''><span class='input-group-addon'><i class='icon-search'></i></span></div></li>";
+                      echo "</ul>";
+                      echo "</li>";
+                }
+                else
+                {
+                    echo '<li>' . html::a('javascript:;', $lang->story->assignedTo, '', $class) . '</li>';
+                }
                 ?>
               </ul>
             </div>
diff --git a/module/project/js/task.js b/module/project/js/task.js
index d01f31c2d2..ba462632b8 100644
--- a/module/project/js/task.js
+++ b/module/project/js/task.js
@@ -11,10 +11,11 @@ $(function()
     }).on('keyup change paste', 'input', function()
     {
         var val = $(this).val().toLowerCase();
+        if(val == '') return $('.assign-menu > .option').removeClass('hide');
         $('.assign-menu > .option').each(function()
         {
             var $option = $(this);
-            $option.toggleClass('hide', $option.text().toLowerCase().indexOf(val) < 0 && $option.data('key').toLowerCase().indexOf(val) < 0);
+            $option.toggleClass('hide', $option.text().toLowerCase().indexOf(val) < 0 || $option.data('key').toLowerCase().indexOf(val) < 0);
         });
     });
 });
diff --git a/module/story/control.php b/module/story/control.php
index ef9f19d7f7..b37686b049 100644
--- a/module/story/control.php
+++ b/module/story/control.php
@@ -799,6 +799,28 @@ class story extends control
         die(js::locate($this->session->storyList, 'parent'));
     }
 
+    /**
+     * Batch assign to.
+     * 
+     * @access public
+     * @return void
+     */
+    public function batchAssignTo()
+    {
+        if(!empty($_POST) && isset($_POST['storyIDList']))
+        {
+            $allChanges  = $this->story->batchAssignTo();
+            if(dao::isError()) die(js::error(dao::getError()));
+            foreach($allChanges as $storyID => $changes)
+            {
+                $actionID = $this->action->create('story', $storyID, 'Edited');
+                $this->action->logHistory($actionID, $changes);
+                $this->sendmail($storyID, $actionID);
+            }
+        }
+        die(js::locate($this->session->storyList));
+    }
+
     /**
      * Tasks of a story.
      * 
diff --git a/module/story/model.php b/module/story/model.php
index 4d38d13da1..0b4ae99010 100644
--- a/module/story/model.php
+++ b/module/story/model.php
@@ -768,6 +768,36 @@ class storyModel extends model
         return $allChanges;
     }
 
+    /**
+     * Batch assign to.
+     * 
+     * @access public
+     * @return array
+     */
+    public function batchAssignTo()
+    {
+        $now         = helper::now();
+        $allChanges  = array();
+        $storyIDList = $this->post->storyIDList;
+        $assignedTo  = $this->post->assignedTo;
+        $oldStories  = $this->getByList($storyIDList);
+        foreach($storyIDList as $storyID)
+        {
+            $oldStory = $oldStories[$storyID];
+            if($assignedTo == $oldStory->assignedTo) continue;
+
+            $story = new stdclass();
+            $story->lastEditedBy   = $this->app->user->account;
+            $story->lastEditedDate = $now;
+            $story->assignedTo     = $assignedTo;
+            $story->assignedDate   = $now;
+
+            $this->dao->update(TABLE_STORY)->data($story)->autoCheck()->where('id')->eq((int)$storyID)->exec();
+            if(!dao::isError()) $allChanges[$storyID] = common::createChanges($oldStory, $story);
+        }
+        return $allChanges;
+    }
+
     /**
      * Activate a story.
      *