- sql optim: do not include category_cats (which makes a query) if current category does not have children (info known when building menubar)

- in index.php - fill the template completely before including menubar/category_cats/thumbnails (some themes might want to use in the menubar some vars ...)

git-svn-id: http://piwigo.org/svn/trunk@2586 68402e56-0260-453c-a942-63ccdbb3a9ee

include/functions_category.inc.php

@@ -103,6 +103,8 @@ WHERE '.$where.'
   while ($row = mysql_fetch_assoc($result))
   {
     array_push($cats, $row);
+    if ($row['id']==@$page['category']['id']) //save the number of subcats for later optim
+      $page['category']['count_categories'] = $row['count_categories'];
   }
   usort($cats, 'global_rank_compare');