for ($j = 0;$j < count($tree[$index]["subNodes"]); $j++)
walkTreeInPostOrderCreatingFoldersUnderTrash($tree[$index]["subNodes"][$j], $imap_stream, $tree, $dm, $topFolderName);
for ($j = 0;$j < count($tree[$index]["subNodes"]); $j++)
walkTreeInPostOrderCreatingFoldersUnderTrash($tree[$index]["subNodes"][$j], $imap_stream, $tree, $dm, $topFolderName);