loop

<?php global $portfolio_mb; /* this is just needed once */ ?>

<div class="mmp-satura-ramis">
<div class="portfolio-list">
<h2>Virtuālās tūres</h2>


<?php global $wp_query; $args = array_merge( $wp_query->query_vars, array( 'post_type' => 'portfolio', 'project-type' => 'virtuala-ture', ) ); query_posts( $args ); while ( have_posts() ) : the_post(); ?>

<span class="portfolio-darbs-pano">
    <a href="<?php the_permalink() ?>"><?php the_post_thumbnail(); ?></a>
    <img src="<?php echo $portfolio_mb->the_value('logourl'); ?>" />
    <div class="portfolio-darba-info"><a href="<?php the_permalink() ?>"><?php the_title(); ?></a></div>
</span>
<?php endwhile; wp_reset_query(); ?>
</div>

<?php if ($wp_query->max_num_pages > 1) : ?>
  <nav id="post-nav" class="pager">
    <div class="previous"><?php next_posts_link(__('&larr; Older posts', 'roots')); ?></div>
    <div class="next"><?php previous_posts_link(__('Newer posts &rarr;', 'roots')); ?></div>
  </nav>
<?php endif; ?>

</div>