use CGI qw(:standard :netscape *table);
use CGI::Carp qw(fatalsToBrowser);
use CGI::Pretty qw( :html3 );
use strict;

my ($order_by,$sql,$order_by_check,$order_by_input);

$sql = qq{SELECT * FROM TABLE}; 

$order_by       = param('order_by');
$order_by_check = param('order_by_check');

if ($order_by) {
  $sql .= " ORDER BY $order_by ";
  if ($order_by_check eq $order_by) {
    $sql .= ' DESC ';
    $order_by_check = $order_by;
  } else {
    $sql .= ' ASC ';
    $order_by_input = "<INPUT TYPE=hidden NAME=order_by_check VALUE=\"$order_by\">";
  }
}

print header,
  
  start_html(),
  start_form(),
  
  center(
	 start_table(),
	 Tr(td(submit('order_by','FAULT_NO',)),
	    td(submit('order_by','ISSUE')),
	    td(submit('order_by','RESPONSE'))),
	 end_table(),
	 p($sql),
	 $order_by_input,
	),
  
  end_form(),
  end_html();

exit;