sub get_category_items
{
my @placeholder;
my ($cat_name, $where, $limit, $value);
$where = qq( WHERE catalog_pet.item_id = colors.item_id AND category = ? );
$value = param("cat");
if ($value ne "")
   {
      push (@placeholder, $value);
   }
shop_parameters($dbh, $cat_name, $where, @placeholder);
}