Yeah thanks that is what I am trying to do, I will check out the module.

Also found code and adapted to create this:

  foreach my $key1 (keys %category_hash) {
    foreach my $key2 (keys %{$category_hash{$key1}}) {
      if ($category_hash{$key1}{$key2}{name} eq '0') {
        $category_dropdown.="<p>$category_hash{$key1}{$key2}{name} Is 
+a top Level category</p>";
      } else {
        $category_dropdown.="<p>$category_hash{$key1}{$key2}{name} Is 
+a sub Level category</p>";
      }
    }
  }
[download]

Take a look at the hash code here