on *:TEXT:!av*:#: 
  if ($nick isop $chan) && ($2 == on) { set %av 1 | msg $chan Auto-voice is now 4on. } 
  if ($nick isop $chan) && ($2 == off) { unset %av | msg $chan Auto-voice is now 4off. }
}

on *:JOIN:#: if (%av == 1) { mode $chan +v $nick
}
}