$menu_file = substr( $menu_file, 0, $pos );
if ( ! empty( $menu_hook ) || ( ('index.php' != $submenu_items[0][2]) && file_exists( WP_PLUGIN_DIR . "/$menu_file" ) ) ) {
$admin_is_parent = true;
$menu_file = substr( $menu_file, 0, $pos );
if ( ! empty( $menu_hook ) || ( ('index.php' != $submenu_items[0][2]) && file_exists( WP_PLUGIN_DIR . "/$menu_file" ) ) ) {
$admin_is_parent = true;