diff --git a/module/api/control.php b/module/api/control.php
index 233bd10464..224fc53a78 100755
--- a/module/api/control.php
+++ b/module/api/control.php
@@ -41,12 +41,12 @@ class api extends control
      */
     public function index($libID = 0, $moduleID = 0, $apiID = 0, $version = 0, $release = 0, $appendLib = 0, $browseType = '', $param = 0)
     {
-        $objectType = $this->objectType;
-        $objectID   = $this->objectID;
+        $objectType  = $this->objectType;
+        $objectID    = $this->objectID;
+        $isFirstLoad = $libID ? false : true;
 
         /* Get all api doc libraries. */
-        $loadLib = false;
-        $libs    = $this->doc->getApiLibs($appendLib, $objectType, $objectID);
+        $libs = $this->doc->getApiLibs($appendLib, $objectType, $objectID);
         if(empty($libs) and $objectType != 'nolink')
         {
             $objectType = 'nolink';
@@ -78,7 +78,6 @@ class api extends control
             $libID      = $lib->id;
             $objectType = $lib->product ? 'product' : ($lib->project ? 'project' : '');
             $objectID   = $lib->product ? $lib->product : $lib->project;
-            if($loadLib) $libs = $this->doc->getApiLibs($appendLib);
         }
 
         /* Get an api doc. */
@@ -112,6 +111,7 @@ class api extends control
 
         $this->view->lib            = $lib;
         $this->view->release        = $release;
+        $this->view->isFirstLoad    = $isFirstLoad;
         $this->view->title          = $this->lang->api->pageTitle;
         $this->view->libID          = $libID;
         $this->view->apiID          = $apiID;
diff --git a/module/doc/control.php b/module/doc/control.php
index 7df038341b..3dadc4874e 100755
--- a/module/doc/control.php
+++ b/module/doc/control.php
@@ -1194,7 +1194,7 @@ class doc extends control
      */
     public function tableContents($type = 'custom', $objectID = 0, $libID = 0, $moduleID = 0, $browseType = 'all', $orderBy = 'status,id_desc', $param = 0, $recTotal = 0, $recPerPage = 20, $pageID = 1)
     {
-        $this->view->isFirstLoad = $objectID == 0 ? 'true' : 'false';
+        $isFirstLoad = $libID == 0 ? true : false;
         $this->session->set('createProjectLocate', $this->app->getURI(true), 'doc');
 
         if(empty($browseType)) $browseType = 'all';
@@ -1252,6 +1252,7 @@ class doc extends control
         $this->view->type           = $type;
         $this->view->objectType     = $type;
         $this->view->browseType     = $browseType;
+        $this->view->isFirstLoad    = $isFirstLoad;
         $this->view->param          = $queryID;
         $this->view->users          = $this->user->getPairs('noletter');
         $this->view->libTree        = $libTree;
diff --git a/module/doc/view/lefttree.html.php b/module/doc/view/lefttree.html.php
index 812ba75605..782ea0aa93 100644
--- a/module/doc/view/lefttree.html.php
+++ b/module/doc/view/lefttree.html.php
@@ -253,7 +253,9 @@ $(function()
                 if(item.active) $li.addClass('active');
             }
         });
-        if(isFirstLoad !== 'false') ele.data('zui.tree').collapse();
+
+        if(isFirstLoad) ele.data('zui.tree').collapse();
+
         var $leaf = ele.find('li.active');
         if($leaf.length) $leaf[$leaf.length - 1].scrollIntoView(false);