For B

alias checkcid {
  ; Get the connection id for %network
  var %network = IRCnet
  var %c = 1
  while (%c <= $scid(0)) {
    if ($scid(%c).network == %network) {
      %cid = %c
      break
    }
    inc %c
  }
  ; Change the script's connection id to %cid
  if (%cid != $null) {
    scid %cid
  }
  ; Here you can send a message to %network
}