ON *:TEXT:!whois*:#: { 
  if ($nick isop $chan) || ($nick ishop $chan) {
    if ($2 == on) { set $+(%,whoisi.,$chan) ON | msg $chan Whois is now: ON }
    if ($2 == off) { set $+(%,whoisi.,$chan) OFF | msg $chan Whois is now: OFF }
    if ($2 == $null) { msg $chan Whois is $eval($+(%,whoisi.,$chan),2) $+ } 
  } 
  else { notice $nick Only ops or halfops can do that! } 
}
on *:join:#: {
  if ($nick == $me) { halt } 
  set %whois $chan 
  .enable #whois 
  /whois $nick 
} 
raw 319:*: {
  if ($($+(%,whoisi.,%whois),2) == ON) { msg %whois $2 is on: $3- | halt 
  }
}