public function append_into_db_msg()
{
extract($_POST);
$UNIX_TIME = parseInt(strtotime(date("Y-m-d H:i:s")));
//+3600;
$QUERY = "INSERT INTO chat values(NULL, {$id_user_writer} ,{$id_user_otherside} ,'{$msg}' , '" . $UNIX_TIME . "' ) ";
mysql_query($QUERY, Conectar::con());
$id_last_msg = mysql_insert_id();
chat::get_msg_from_db_by_limit("justOneMSG", $id_user_writer);
// obtenemos solo 1 msg
notify::set_notify($id_last_msg);
// metemos la notifycacion |||| pasamos ( user_writer , user_reader , id_chat);
}
