function &singleton($url)
{
static $instance;
if (!isset($instance)) {
require_once HORDE_LIBS . 'Horde/CLI.php';
if (!Horde_CLI::runningFromCLI()) {
exit("Must be run from the command line\n");
}
Horde_CLI::init();
$instance =& Countries::factory($url);
}
return $instance;
}