function myiconv($in_enc, $out_enc, $string)
{
    global $_utf8win1251, $_win1251utf8;
    if ($in_enc == $out_enc) {
        return $string;
    }
    if (function_exists('iconv')) {
        $converted = @iconv($in_enc, $out_enc, $string);
        if ($converted !== FALSE) {
            return $converted;
        }
    }
    if ($in_enc == "cp1251" && $out_enc == "utf-8")
        return strtr($string, $_win1251utf8);
    if ($in_enc == "utf-8" && $out_enc == "cp1251")
        return strtr($string, $_utf8win1251);

    return $string; // do not know how to convert
}