jQuery(function($) {
        jQuery('#field-exp_date').datepicker({
            <!-- we do this instead of using the default because there is a bug in jquery-ui when using the firstDay parameter -->
                firstDay: "1",
            dateFormat: "dd.mm.yy",
            showOn: "both",
            buttonImage: "/chrome/datefield/calendar.png",
            buttonImageOnly: true
        });
});