Display author, email and URL in three columns. NOTE: Does not work with certain antispam plugins! Additional custom CSS needed.

commentform_columns.js

jQuery(document).ready(function($){
// Two Column Comment Form
// Author: Bill Erickson
// URL: http://www.billerickson.net/code/two-column-comment-form/
if( $('.comment-form-author').length ) {
$('.comment-form').prepend( '<div class="ez-only comment-form-full" />' );
	$('.comment-form').prepend( '<div class="one-third comment-form-right" />' );
$('.comment-form').prepend( '<div class="one-third comment-form-middle" />' );
$('.comment-form').prepend( '<div class="one-third first comment-form-left" />' );

$('.comment-form-author').appendTo( '.comment-form-left' );
$('.comment-form-email').appendTo( '.comment-form-middle' );
$('.comment-form-url').appendTo( '.comment-form-right' );
$('.comment-form-comment').appendTo( '.comment-form-full' );
}
});