Resolved issue 0000697: with generic user a author name is necessary to comment picture.

+ Change way to determinate if user is a guest (use functions like is_admin)


git-svn-id: http://piwigo.org/svn/trunk@2029 68402e56-0260-453c-a942-63ccdbb3a9ee

identification.php

@@ -40,7 +40,7 @@ $redirect_to = '';
 if ( !empty($_GET['redirect']) )
 {
   $redirect_to = urldecode($_GET['redirect']);
-  if ( $user['is_the_guest'] )
+  if ( is_a_guest() )
   {
     array_push($errors, l10n('access_forbiden'));
   }