datepicker in french

datepicker in french

I did this:
<script type="text/javascript" src="http://jquery-ui.googlecode.com/svn/trunk/ui/i18n/jquery.ui.datepicker-fr.js"></script>

I took and modified the standard demo:

var dates = $('#from, #to').datepicker({
            showOn: 'button',
            buttonImage: 'images/calendar.gif',
            buttonImageOnly: true,
            defaultDate: "",
            changeMonth: true,
            numberOfMonths: 1,
            onSelect: function(selectedDate) {
                var option = this.id == "from" ? "minDate" : "maxDate";
                var instance = $(this).data("datepicker");
                var date = $.datepicker.parseDate(instance.settings.dateFormat || $.datepicker._defaults.dateFormat, selectedDate, instance.settings);
                dates.not(this).datepicker("option", option, date);
            }
        }, $.datepicker.regional['fr']);

and the calendar is always in english ! where is my fault ?