How do I create a currency pulldown

With no default
                  <!--{currencies_list assign="currencies_list"}-->
                 <select name="additionalCurrency" class="calendar">
                    <option value=""></option>
                    <!--{html_options options=$currencies_list selected=$additionalCurrency}-->
                </select>

With a default of Canadian Dollars. The CAD can be replaced with any supported currency code

                  <!--{currencies_list assign="currencies_list"}-->
                    <select name="additionalCurrency" class="calendar">
                        <option value=""></option>
                        <!--{html_options options=$currencies_list selected=$additionalCurrency|default:"CAD"}-->
                    </select>