I have a jQuery UI datepicker on my page and I set a defaultDate using the below code - but it keeps picking the month after the month I set! For example the below is showing as 1st December, not November!
var datePickDate = new Date(2011, 11, 01);
$("#datepicker").datepicker({
    defaultDate: datePickDate,
    onSelect: function(dateText, inst){
        $("#datepicker_value").val(dateText);
    }
});
 
    