Index: branches/RC/kernel/units/files/file_tp.php
===================================================================
diff -u -N -r9649 -r10098
--- branches/RC/kernel/units/files/file_tp.php	(.../file_tp.php)	(revision 9649)
+++ branches/RC/kernel/units/files/file_tp.php	(.../file_tp.php)	(revision 10098)
@@ -15,8 +15,8 @@
 			$object =& $this->getObject($params);
 			/* @var $object kDBItem */
 
-			$last_dot = strrpos($object->GetDBField('FilePath'), '.');
-			$ext = ($last_dot !== false) ? substr($object->GetDBField('FilePath'), $last_dot + 1).'.gif' : '';
+			$last_dot = mb_strrpos($object->GetDBField('FilePath'), '.');
+			$ext = ($last_dot !== false) ? mb_substr($object->GetDBField('FilePath'), $last_dot + 1).'.gif' : '';
 
 			return $ext ? $ext : $params['default'];
 		}