diff --git a/example/includes/templates.php b/example/includes/templates.php
index ee9270c..f5c41f0 100644
--- a/example/includes/templates.php
+++ b/example/includes/templates.php
@@ -5,6 +5,8 @@ use EesyPHP\Date;
 use EesyPHP\Hook;
 use EesyPHP\Log;
 use EesyPHP\Tpl;
+use EesyPHP\Url;
+
 
 use function EesyPHP\format_size;
 
@@ -70,14 +72,15 @@ Tpl :: register_function('format_size','smarty_format_size');
 
 function smarty_table_ordered_th($params, $smarty) {
   if ($params['order'] && $params['url'] && $params['text'] && is_array($params['search'])) {
-    $params['url'] .= (strpos($params['url'], '?') === false?'?':'&')."order=".$params['order'];
-    echo "<a href='".$params['url']."'>".$params['text']."</a>";
+    $params['url'] = Url::add_url_parameter($params['url'], 'order', $params['order']);
+    printf("<a href='%s'>%s</a>", $params['url'], $params['text']);
   }
-  if ($params['order']==$params['search']['order']) {
-    echo (
-      ' <i class="fa fa-sort-'.
-      (strtolower($params['search']['order_direction'])=='asc'?'up':'down').
-      '" aria-hidden="true"></i>');
+  if ($params['order'] == $params['search']['order']) {
+    printf(
+      ' <i class="fa fa-sort-%s" aria-hidden="true"></i>',
+      strtolower($params['search']['order_direction']) == 'asc'?
+      'up':'down'
+    );
   }
 }
 Tpl :: register_function('table_ordered_th','smarty_table_ordered_th');