I am using JqueryUI datepicker, and I cannot call 'setDate' method on a datepicker if I use a format like this: 'mm yy'.
See my snippet here:
$(function(){
    $('#datepicker').datepicker(
        {dateFormat: 'mm yy'}
    );
    $('#datepicker').datepicker('setDate', new Date(2010, 10, 1));
    var d = $("#datepicker" ).datepicker('getDate');
    alert(d); //this should alert 2010,10,1, but it is not! it alerts the current time instead
});
http://jsfiddle.net/wintlu/DmmQU/
My observation is that: if I use format including day part, like 'dd mm yy', then i can use setDate, but if I use format without day part, like 'mm yy', then i cannot use setDate.
My question is : Is this a bug of datepicker? If so, what is the walk around ?
Thanks in advance
