diff --git a/workflow/engine/classes/model/Configuration.php b/workflow/engine/classes/model/Configuration.php
index 000044a8d..ac0d43b35 100755
--- a/workflow/engine/classes/model/Configuration.php
+++ b/workflow/engine/classes/model/Configuration.php
@@ -127,6 +127,9 @@ class Configuration extends BaseConfiguration
         }
     }
 
+    /**
+    * To check if the configuration row exists, by using Configuration Uid data 
+    */
     public function exists($CfgUid, $ObjUid='', $ProUid='', $UsrUid='', $AppUid='')
     {
         $oRow = ConfigurationPeer::retrieveByPK( $CfgUid, $ObjUid, $ProUid, $UsrUid, $AppUid );
diff --git a/workflow/engine/templates/cases/casesDocuments.js b/workflow/engine/templates/cases/casesDocuments.js
index 7e229a05e..d127e1763 100755
--- a/workflow/engine/templates/cases/casesDocuments.js
+++ b/workflow/engine/templates/cases/casesDocuments.js
@@ -457,7 +457,7 @@ function openActionDialog(caller, action, dataAux)
       break;
 
     case 'download':
-      if(ext_itemgrid.getSelectionModel().getSelected() == undefined) {
+      if(typeof(ext_itemgrid.getSelectionModel().getSelected()) == 'undefined') {
          break;
       }
       fileName=ext_itemgrid.getSelectionModel().getSelected().get('name');