<?php
/*
Plugin Name: set AccessKey on Next6/Prev4
Description: 前後の投稿へのリンクにアクセスキーをセットする
Version: 1.0
Author: Y.Nishimura
Author URI: http://officel.biz/
*/

function filter_setAccesskeyN6($content) {
    return $content . ' accesskey="6"';
}
function filter_setAccesskeyP4($content) {
    return $content . ' accesskey="4"';
}
add_filter('next_posts_link_attributes', 'filter_setAccesskeyN6');
add_filter('previous_posts_link_attributes', 'filter_setAccesskeyP4');

?>