Always show the top discount code field on the checkout page for Paid Memberships Pro

pmpro_always_show_discount_code.php

// Always show the top discount code field on the checkout page for Paid Memberships Pro
function my_pmpro_always_show_discount_code()
{
	?>
		<script>
			jQuery(document).ready(function() {
				jQuery('#other_discount_code_tr').show();
				jQuery('#other_discount_code_p').hide();
				jQuery('#other_discount_code').focus();
			});
		</script>
	<?php
}
add_action('pmpro_checkout_before_submit_button', "my_pmpro_always_show_discount_code");