try using this alias

Code:
alias join {
  if (!$1-) { echo 4 -a ERROR: Not enough parameters, try again and enter the channel(s) you want to join! - (/join) | return }
  var %chans = $1-
  var %i = 1
  while (%i <= $numtok(%chans,44)) {
    var %c = $gettok(%chans,%i,44)
    .timer[JOIN_ $+ %c $+ _DELAY] 1 %i join %c
    inc %i
  }
}

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