if points inserted ad more tha max

functions.php

<?php

if ( defined( 'YITH_YWPAR_PREMIUM' ) ) {
    function ywpar_print_my_inline_script() {

            ?>
    <script type="text/javascript" charset="utf-8">
            jQuery(document).find('form.ywpar_apply_discounts').on('submit', function (e) {
                var max = jQuery('input[name="ywpar_points_max"]').val(),
                    input_t = jQuery('#ywpar-points-max').val();

                if (parseInt(max) < parseInt(input_t)) {
                    alert('your message');
                    return false;
                } else {
                    return true;
                }
            });
    </script>
        <?php
            endif;
    }

    add_action( 'wp_footer', 'ywpar_print_my_inline_script', 99 );
}