% if ( $conf->exists('enable_taxclasses') ) { 

    <SELECT NAME="taxclass">

%   if ( $conf->exists('require_taxclasses') ) { 
        <OPTION VALUE="(select)">Select tax class
%   } else { 
        <OPTION VALUE="">
%   } 

%   foreach my $taxclass ( @{ $opt{'taxclasses'} } ) { 
        <OPTION VALUE="<% $taxclass %>"<% $taxclass eq $selected_taxclass ? ' SELECTED' : '' %>><% $taxclass %>
%   } 

    </SELECT>

% } else { 

  <INPUT TYPE="hidden" NAME="taxclass" VALUE="<% $selected_taxclass %>">

% } 

<%init>

my( $selected_taxclass, %opt ) = @_;
my $conf = new FS::Conf;

unless ( $opt{'taxclasses'} ) {

  my $sth = dbh->prepare('SELECT DISTINCT taxclass FROM cust_main_county')
     or die dbh->errstr;
  $sth->execute or die $sth->errstr;
  my %taxclasses = map { $_->[0] => 1 } @{$sth->fetchall_arrayref};
  @{ $opt{'taxclasses'} } = grep $_, keys %taxclasses;

}

</%init>