var privacyChecked = false;

    
function checkDatePickerDateAfterToday(sender,args)
{
    var _temp = new Date();
    if (sender._selectedDate < new Date())
    {
        alert("Please select a date in the future.");
        //sender._selectedDate = new Date().setDate(_temp + 1); 
        // set the date back to the current date
        sender._textbox.set_Value('');
    }
}