wordpress-カスタム投稿の最新記事5件を出力したい-

gistfile1.php

<?php
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
$newloop = new WP_Query(array(
    'post_type' => blog,
    'posts_per_page' => 5,
    'paged' => $paged
));
if ($newloop->have_posts()) :
    while ($newloop->have_posts()) : $newloop->the_post();
?>
 <!--ループ内 -->
 <div class="thumbnail_box2">
		<a href="<?php the_permalink() ?>"><?php the_post_thumbnail(array(100,40)); ?> </a>
		<br />
		<div class="thumtitle"><a href="<?php the_permalink() ?>" rel="bookmark" title="<?php printf(__(' %s', 'uscestheme'), the_title_attribute('echo=0')); ?>"><?php the_title(); ?></a></div></div>

<?php endwhile; endif; ?>