code:

on *:text:!setpmPm*:#sdpc: { 
  if ($nick isop $chan || $Nick ishop $chan) { 
    set %pm $2 
  }
}
on *:text:!unsetpm*:#: { 
  if ($Nick isop $chan || $Nick ishop $chan) { 
    unset %Pm 
  }
}
on *:join:#sdpc: { 
  if ($nick isreg $chan) { 
    msg $nick 2 please pm %pm for autovoice 
  }
}