diff --git a/classes/Referrer.php b/classes/Referrer.php
index bf90593eb..8639443c7 100644
--- a/classes/Referrer.php
+++ b/classes/Referrer.php
@@ -252,6 +252,7 @@ class ReferrerCore extends ObjectModel
 	 *
 	 * @param array $referrers
 	 * @param int $employee
+	 * @return true
 	 */
 	public static function refreshCache($referrers = null, $employee = null)
 	{
@@ -265,7 +266,6 @@ class ReferrerCore extends ObjectModel
 				if (!$referrer->isAssociatedToShop($shop_id))
 					continue;
 
-				$shop = new Shop($shop_id);
 				$stats_visits = $referrer->getStatsVisits(null, $employee);
 				$registrations = $referrer->getRegistrations(null, $employee);
 				$stats_sales = $referrer->getStatsSales(null, $employee);
diff --git a/classes/controller/Controller.php b/classes/controller/Controller.php
index 7d56d2a02..af4861b19 100644
--- a/classes/controller/Controller.php
+++ b/classes/controller/Controller.php
@@ -313,12 +313,12 @@ abstract class ControllerCore
 	/**
 	 * Add a new javascript file in page header.
 	 *
-	 * @param mixed $js_uri
+	 * @param mixed $name
+	 * @param mixed $folder
 	 * @return void
 	 */
 	public function addJqueryPlugin($name, $folder = null)
 	{
-		$plugin_path = array();
 		if (is_array($name))
 		{
 			foreach ($name as $plugin)
@@ -334,10 +334,10 @@ abstract class ControllerCore
 		{
 			$plugin_path = Media::getJqueryPluginPath($name, $folder);
 
-		if(!empty($plugin_path['css']))
-			$this->addCSS($plugin_path['css']);
-		if(!empty($plugin_path['js']))
-			$this->addJS($plugin_path['js']);
+			if(!empty($plugin_path['css']))
+				$this->addCSS($plugin_path['css']);
+			if(!empty($plugin_path['js']))
+				$this->addJS($plugin_path['js']);
 		}
 	}