In reporting specially, datepicker with month and year only are a better way to provide information to form for submission without need of the day.
In my case, I modified one picker $( “#month” ).datepicker to fill both month and year input field
$( "#month" ).datepicker({
		buttonImageOnly: true,
		dateFormat: "MM yy",
		changeMonth: true,
		changeYear: true,
		showButtonPanel: true,
		numberOfMonths: 1,
		//setDate: checkindate,
		onClose: function(dateText, inst) {
            var month = $("#ui-datepicker-div .ui-datepicker-month :selected").val();
            var year = $("#ui-datepicker-div .ui-datepicker-year :selected").val();
            $("#month").val($.datepicker.formatDate('mm', new Date("", month, 1)));
            $( "#year" ).val($.datepicker.formatDate('yy', new Date(year, "", 1)));
        },
	});
Month: <input type="text" id="month" name="month"></input> <br></br> Year: <input type="text" id="year" name="year"></input>
What do you think?