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ON *:TEXT:brb*:#:{ if ($2 == $null) {
    set %away $+ $nick $nick
    set %why $+ $nick N/a
    set %tim $+ $nick $ctime
    msg $chan 4 $+ $nick Will be right back:2 N/a 
    halt
  }
  else {
    set %away $+ $nick $nick
    set %why $+ $nick $2-
    set %tim $+ $nick $ctime
    msg $chan $nick 4Will be right back:2 $2-
  }
}
ON *:TEXT:*back*:#:{ if (%away [ $+ [ $nick ] ] == $nick) {
    msg $chan 4 $+ $nick $+ , Welcome back from2 %why [ $+ [ $nick ] ] $+ 4. You where gone for2 $duration($calc( $ctime - %tim [ $+ [ $nick ] ] ))
    unset %away $+ $nick
    unset %why $+ $nick
    unset %tim $+ $nick  
  }