Bonjour,
test copier/coller du code :
include CONFIG;
$selskin = is_file(CHEMIN.'skins/'.$selskin.'/confskin.inc') ? $selskin : 'no_skin';
$meskin = CHEMIN.'skins/'.$selskin.'/';
if (is_file ($meskin.'confskin.inc')) {
include $meskin.'confskin.inc';
} else {
die('Skin not found : '.$meskin);
}