$clref = $dbh->prepare ("SELECT color FROM item WHERE prod_id = ".$ref->{product_id});
               $clref->execute();
    
               while (my $color = $clref->fetchrow_hashref()) {
               push @{$ref->{color}}, $color->{color};
                  }

##</code><code>##

$clref = $dbh->prepare ("SELECT item_id, color FROM item WHERE prod_id = ".$ref->{product_id});
               $clref->execute();
    
               while (my $color, $item_id = $clref->fetchrow_hashref()) {
               push @{$ref->{color}, {$ref->{item_id}}, $color->{color}, $item_id->{item_id};
                  }

##</code><code>##

sub add_item
{
my ($dbh, $cart_ref, $item_id, $qty, $color) = @_;

	# If the item isn't already in the cart, look it up from the database
	# and store it in the cart as a new entry with a quantity of zero.
	if (!exists ($cart_ref->{$item_id}))
	{
		my $sth = $dbh->prepare ("SELECT * FROM item, catalog_pet WHERE catalog_pet.product_id = item.prod_id AND catalog_pet.product_id = ?");
		$sth->execute ($item_id);
		my $item_ref = $sth->fetchrow_hashref ();
		$sth->finish ();
		return if !defined ($item_ref);	# this shouldn't happen...
		$cart_ref->{$item_id} = {};	# create new entry, indexed by item ID
		$cart_ref->{$item_id}->{description} = $item_ref->{description};
		$cart_ref->{$item_id}->{price} = $item_ref->{price};
		$cart_ref->{$item_id}->{qty} = 1;
	}
	$cart_ref->{$item_id}->{qty} = $qty;	
                $cart_ref->{$item_id}->{color} = $color;	
}