diff --git a/.vscode/ftp-kr.sync.cache.json b/.vscode/ftp-kr.sync.cache.json
index be83a4e..9ee4f93 100644
--- a/.vscode/ftp-kr.sync.cache.json
+++ b/.vscode/ftp-kr.sync.cache.json
@@ -198,19 +198,19 @@
         "style.css": {
           "type": "-",
           "size": 18298,
-          "lmtime": 1734279688786,
+          "lmtime": 1734346488819,
           "modified": false
         },
         "style.css.map": {
           "type": "-",
           "size": 32824,
-          "lmtime": 1734279688786,
+          "lmtime": 1734346488819,
           "modified": false
         },
         "style.scss": {
           "type": "-",
           "size": 22746,
-          "lmtime": 1734279688647,
+          "lmtime": 1734346488372,
           "modified": false
         }
       },
diff --git a/libraries/grid/ajax.php b/libraries/grid/ajax.php
index e7ea125..16bb3da 100644
--- a/libraries/grid/ajax.php
+++ b/libraries/grid/ajax.php
@@ -1,4 +1,5 @@
 <?php
+error_reporting(E_ALL ^ E_NOTICE ^ E_STRICT ^ E_WARNING ^ E_DEPRECATED);
 require_once dirname( __FILE__ ) . '/config.php';
 
 /* grid - zapisanie elementu */
@@ -6,12 +7,12 @@ if ( $_POST['a'] == 'gsave' )
 {
   $grid = $_SESSION[ 'g' . $_POST[ 'gtable' ] ];
   if ( is_a( $grid, 'grid' ) )
-  {    
+  {
     $values_tmp = json_decode( $_POST[ 'values' ], true );
-    
+
     if ( is_array( $values_tmp ) ) foreach ( $values_tmp as $val )
       $values[ $val['name'] ] = $val['value'];
-        
+
     if ( $grid -> saveElement( $values ) )
     {
       if ( $values[ $grid -> id ] )
@@ -19,8 +20,8 @@ if ( $_POST['a'] == 'gsave' )
       else
         $msg = 'Nowy element został dodany.';
     }
-    
-    $response = array( 
+
+    $response = array(
       'status' => 'ok',
       'output' => $grid -> drawResults(),
       'msg' => $msg
@@ -37,10 +38,10 @@ if ( $_POST['a'] == 'gedit' )
 {
   $grid = $_SESSION[ 'g' . $_POST[ 'gtable' ] ];
   if ( is_a( $grid, 'grid' ) )
-  {    
-    $response = array( 
+  {
+    $response = array(
       'status' => 'ok',
-      'output' => $grid -> drawEdit( (int)$_POST[ 'gedit' ] ) 
+      'output' => $grid -> drawEdit( (int)$_POST[ 'gedit' ] )
     );
   }
   else
@@ -61,14 +62,14 @@ if ( $_POST['a'] == 'gdraw' )
       $grid -> hide_column( $_POST['column'], $_POST['hidden'] );
       $grid -> hidden_columns[ $_POST['column'] ] = filter_var( $_POST['hidden'], FILTER_VALIDATE_BOOLEAN );
     }
-    
+
     /* zmiana liczby wyświetlanych elementów */
     if ( $_POST['glimit'] )
     {
       $grid -> limit = $_POST['glimit'];
       $grid -> save_limit( $_POST['glimit'] );
     }
-    
+
     /* usuwanie wielu elementów */
     if ( $_POST['gdelete_multi'] )
     {
@@ -76,14 +77,14 @@ if ( $_POST['a'] == 'gdraw' )
         $grid -> delete( $id );
       $msg = 'Wybrane elementy zostały usunięte.';
     }
-    
+
     /* usuwanie */
     if ( $_POST['gdelete'] )
     {
       if ( $grid -> delete( $_POST['gdelete'] ) )
         $msg = 'Wybrany element został usunięty.';
     }
-    
+
     /* wyszukiwanie */
     if ( $_POST['gsearch_column'] )
     {
@@ -97,7 +98,7 @@ if ( $_POST['a'] == 'gdraw' )
       $grid -> save_filters();
       $grid -> set_cp( 1 );
     }
-    
+
     /* sortowanie */
     if ( $_POST[ 'gsort_column' ] )
     {
@@ -107,15 +108,15 @@ if ( $_POST['a'] == 'gdraw' )
         $grid -> order = [ 'column' => $_POST[ 'gsort_column' ], 'type' => 'ASC' ];
       $grid -> save_order();
     }
-    
+
     /* zmiana strony */
     if ( $_POST[ 'gpage'] )
       $grid -> set_cp( $_POST[ 'gpage'] );
-    
-    $response = array( 
+
+    $response = array(
       'status'  => 'ok',
       'msg'     => $msg,
-      'output'  => $grid -> drawResults() 
+      'output'  => $grid -> drawResults()
     );
   }
   else