HTML Code

<div class="popup">

Date Picker<input type="text" class="datepicker" />

</div>

jQuery Code

$(document).ready(function(e) {

$.blockUI({

message:$('.popup'),

focusInput: false,

onBlock:function(){}

});

$( ".datepicker" ).datepicker({

dateFormat: 'dd-mm-yy',

changeYear: true,

changeMonth: true,

yearRange: 'c-10:c+3',

showButtonPanel: false

});

});

You can check below jsFiddle:

http://jsfiddle.net/4FhHK/204/

I also asked in StackOverflow:

http://stackoverflow.com/questions/18186257/jquery-ui-datepicker-month-and-year-combo-not-working-in-jquery-blockui-popup