jquery check if start date greater than end date

<script type="text/javascript">
    jQuery(document).ready(function () {
        jQuery('#sssigned_user_id').select2();

        jQuery('#filter').submit(function () {
            var from = jQuery('[name="from"]').val();
            var to = jQuery('[name="to"]').val();
            var startDate = new Date(from);
            var endDate = new Date(to);
            if (startDate > endDate){
                alert('Start date cannot greater than end date!');
                return false;
            }
        });
    });
</script>