Select Code to Download

# I'm assuming that sth returns a long list of nodes ordered
# from lowest rep to highest and then newest to oldest.
...
    $selected[rand(@selected)] = $row;
  }
}

# I'm assuming that sth returns a long list of nodes ordered
# from highest rep to lowest and then oldest to newest.
...
for (0..($#filler)) {
  $selected[$_] ||= $filler[$_];
}