log_main("login[".$user_obj->code."]: ".$user_obj->login);
/* if it exists check for a valid challenge */
if (($a_sem = Challenges::lock_data()) != FALSE) {
log_main("login[".$user_obj->code."]: ".$user_obj->login);
/* if it exists check for a valid challenge */
if (($a_sem = Challenges::lock_data()) != FALSE) {