on me:*:join:#KANAL:{ mode # +b | .timerbn 1 2 bn # }
alias bn {
  if $ibl($1,0) {  
   var %a = 1
    while %a <= $ibl($1,0) { mode $1 -b $ibl($1,%a) | inc %a } 
    .timercl 1 2 msg $1 !clear
  }
}