{if (pageproperty[‘pageid’] eq ‘checkoutstep2’)}
<script>
$(‘#checkout_comment’).attr(‘maxlength’, 30);
</script>
{endIf}
If you’re not comfortable adding it yourself, we can add it for you.
For others reading, you can use a similar method to substitute the input box to a multi-line text-area which might prove a little more user friendly for customers wishing to leave detailed order notes.