Can there be in whatever way to exchange standard WordPress comments form action, which often appears like this: <form action="<?php echo get_option('siteurl'); ?>/wp-comments-post.php" method="post" id="commentform"> to something custom WITHOUT changing comments.php (i.e. for any wordpress plugin, so it's not necessary to make finish-customers edit their styles)

<form action="<?php echo get_option('siteurl'); ?>/wp-comments-post.php" some_java_script some_tag="some_value" method="post" id="commentform">