@killerX This might be what your looking for:

on *:TEXT:?join*:#:{
  if (!$(,$+(%,flood,$nick))) {
    set -u3 $+(%,flood,$nick)
  }

  if ($address($nick,2) != $address($me,2)) {
    notice $nick You need to be a Moderator of this bot to use this command.
    return
  }

  notice $nick 5Conneting to $2 , Please wait......

  if ($2 == $null) {
    notice $nick 4Failed14 to join the channel because you didn't provide a channel name!
    return
  }

  if ($me ison $2) {
    .timer 1 3 notice $nick 4Failed14 to join $2 because I'm already in that channel!
    return
  }
  set -u5 %!join $+ $2 $chan
  join $2
}

else {
  .timer 1 3 msg $chan 2Succesfully14 joined channel $chan 
}

on *:JOIN:#:{
  if ($eval($+(%,!join,$chan),2) != $null) {
    .timer 1 3 msg $v1 3Successfully 5joined channel $chan 
    msg $chan 14I joined this channel because it was requested by the host of this Bot.
    unset %!join $+ $chan
  }
}
raw 474:*:{
  if ($eval($+(%,!join,$2),2) != $null) {
    notice Sphex 4Failed 14to join $2 because the bot has been banned from that channel.
    unset %!join $+ $chan
  }
}