В заголовке страницы
<script type="text/javascript">
var CUSTOMIZE_TEXTFIELD = 1;
....
var currency = {"id":4,"name":"\u0414\u043e\u043b\u043b\u0430\u0440","iso_code":"USD","iso_code_num":"840","sign":"$","blank":"0","conversion_rate":"1.000000","deleted":"0","format":"2","decimals":"0","active":"1","prefix":"","suffix":" $","id_shop_list":null,"force_id":false};
var currencyBlank = 0;
var currencyFormat = 2;
var currencyRate = 1;
var currencySign = '$'