static function get_elements_used($file = "")
{
@ini_set("zend.ze1_compatibility_mode", "0");
//on récupère la partie intéressante du manifest...
$dom = new domDocument();
$dom->load($file);
$use = $dom->getElementsbyTagName("use")->item(0);
$elements_used = self::read_elements_used($use);
@ini_set("zend.ze1_compatibility_mode", "1");
return $elements_used;
}
