exe order in /usr/local/etc/rc.d

[RJ45]

I have never understood in which order are execurted the scripts which are
in /usr/local/etc/rc.d

most port applications like mysqld, cyrus-imapd, spamd etc. put their
startup scripts into /usr/local/etc/rc.d but they are not ordered by a
number attached before the script name (like the Unix SysV style)

anyone has some hint about this ?
How can I Set the startup order into /usr/local/etc/rc.d

thanks

Rick