<?php
    $embedpostsPM = get_post_meta($post->ID, 'embed posts', true);
    if ($embedpostsPM) {

        $embedpostsArr = explode("\n", $embedpostsPM);
        foreach ($embedpostsArr as $embedpost) {
            echo 'the post to embed:'.$embedpost.'!';

            $recent = new WP_Query("page_id=157");
            while($recent->have_posts()):$recent->the_post();
            ?>


                <article class="box articlebox" id="post-<?php the_ID(); ?>">
                    <header>
                        <h1><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></h1>
                    </header>
                    <section>
                        <?php the_content('mehr'); ?>
                    </section>
                    <footer>
                        <small>
                            <?php the_time('F jS, Y'); ?> <br/>
                            <?php the_category(' &gt; '); ?>
                        </small>
                    </footer>
                </article>

            <?php
            endwhile;

        }
    }
?>