<div class="input-group date" style="width: 200px">
    <input type="text" id="example1" class="form-control" style="cursor: pointer"/>
        <span class="input-group-addon">
            <i class="glyphicon glyphicon-calendar"></i>
        </span>
</div>

$('#example1').datepicker
({
    format: "MM yyyy",
    minViewMode: 1,
    autoclose: true,
    startDate: new Date(new Date().getFullYear(), '0', '01'),
    endDate: new Date(new Date().getFullYear()+1, '11', '31')
});