$tables_to_clear['contact'] = array('contacts');
XDB::execute("UPDATE auth_user_md5
SET date_ins = 0, promo_sortie = 0, nom_usage = '', password = '', perms = 'pending',
$tables_to_clear['contact'] = array('contacts');
XDB::execute("UPDATE auth_user_md5
SET date_ins = 0, promo_sortie = 0, nom_usage = '', password = '', perms = 'pending',