Разделение цены пробелами (JS)

addSpaceToPrice = function(value, count) {
        if (value != undefined) {
            price = value.replace(/ /g, "")
            if (price.indexOf(',') > 0)
                price = price.substring(0, price.indexOf(','));
            fprice = '';
            price_ln = price.length;
            if (price_ln > count) {
                for (i = price_ln; i >= 0; i--) {
                    tmp = i % count === 0 ? ' ' : '';
                    fprice = fprice + tmp + price.substr(price_ln - i, 1);
                }
            } else {
                fprice = price;
            }
            return fprice;
        }
    }