Currency Type in authorized.net

I fetch the same problem... I can't provide the currency type from my site. the amount which user provide either it would be in doller or euro. then how i provide the currency type when i provide amount. my code is as follows. if anyone help me then plz reply me to [email protected]

thank you

tanvir

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3|1|39|(TESTMODE) The supplied currency code is either invalid, not supported, not allowed for this merchant or doesn't have an exchange rate.|000000|P|0||Recycled Toner Cartridges|12.23|CC|auth_capture||Charles D.|Gaulle||342 N. Main Street #150|Ft. Worth|TX|12345||||||||||||||||||B0B3DA4462FC84C144A82130D45BF771|||||||||||||||||||||||||||||||FALSE|Customer Birth Month: 12|Customer Birth Day: 1|Customer Birth Year: 1959|Promotion: Spring Sale
///////////////////////////////////////
$authnet_values = array
(
"x_login" => $auth_net_login_id,
"x_version" => "3.1",
"x_delim_char" => "|",
"x_delim_data" => "TRUE",
"x_url" => "FALSE",
"x_type" => "AUTH_CAPTURE",
"x_method" => "CC",
"x_tran_key" => $auth_net_tran_key,
"x_relay_response" => "FALSE",
"x_card_num" => "***",
"x_exp_date" => "",
"x_card_code" => "",
"x_description" => "Recycled Toner Cartridges",
"x_amount" => "12.23",
"x_first_name" => "Charles D.",
"x_last_name" => "Gaulle",
"x_address" => "342 N. Main Street #150",
"x_city" => "Ft. Worth",
"x_state" => "TX",
"x_zip" => "12345",
"x_currency_code" => "EUR",
"CustomerBirthMonth" => "Customer Birth Month: 12",
"CustomerBirthDay" => "Customer Birth Day: 1",
"CustomerBirthYear" => "Customer Birth Year: 1959",
"SpecialCode" => "Promotion: Spring Sale",
);