function data_get_detail($config, $id)
{
    // get connection
    $conn = get_connection($config);
    // create the SQL statement
    $sql = "SELECT * FROM detail\n\t\t\tWHERE Id={$id}";
    // execute the SQL statement
    $result = mysql_query($sql, $conn) or die(mysql_error());
    // fetch category info
    $detail = mysql_fetch_array($result);
    if ($detail) {
        // get category information
        $category = data_get_category($config, $detail['CategoryId']);
        // set the name of category to detail
        $detail['Category'] = $category['Name'];
    }
    return $detail;
}
function get_category($config, $id)
{
    return data_get_category($config, $id);
}