private function install_next($act_get)
{
$_arr_optKeys = array_keys($this->obj_tpl->opt);
$_index = array_search($act_get, $_arr_optKeys);
$_arr_opt = array_slice($this->obj_tpl->opt, $_index + 1, 1);
if ($_arr_opt) {
$_key = key($_arr_opt);
} else {
$_key = "admin";
}
return $_key;
}