FormatDate of DatePicker in Javascript

[Dan]

What am I doing wrong here?  I am trying to get a formatted Date out of my datepicker in Javascript that is culture sensitive.

function getDate() {

    sender = $find('<%= RadDatePciker1.ClientID %>');
    var selectedDate = sender.get_selectedDate();
    var shortDatePattern = sender.get_calendar().DateTimeFormatInfo.ShortDatePattern;
    var formattedDate = sender.get_calendar().DateTimeFormatInfo.FormatDate(selectedDate, shortDatePattern);
    alert(formattedDate);

}

[Dan]

Well now, this seems to work, but is this how I am supposed to do this?

function getDate(sender) {

    var selectedDate = sender.get_selectedDate();
    var shortDatePattern = sender.get_calendar().DateTimeFormatInfo.ShortDatePattern;
    var formattedDate = sender.get_dateInput().get_dateFormatInfo().FormatDate(selectedDate, shortDatePattern)
    return formattedDate;

}