can I run new WP_Query inside the Loop with no affects to the Loop? (wordpress)

Question

the bellow function is working fine but I need to run it inside the loop. If done so the post content is actually taken from the last post of my WP_Query. Not from the one that should appear.

Is there any way to run my query and leave The Loop unaffected?

function recent_post_by_author() {
  echo '<div class="recent_post_by_author">';
  $my_query = new WP_Query('author_name=Radek&showposts=2');
  while ($my_query->have_posts()) : $my_query->the_post(); ?>
  <a href="<?php the_permalink() ?>" title="<?php the_title(); ?>"> <?php the_title(); ?></a><BR>
  <?php endwhile;
  echo '</div>';
}

Answer 1

Are you missing some php opening and closing tags when enclosing the new query in the function? This works as a standalone new query loop that can be used multiple times inside the main WP loop:

<?php $my_query = new WP_Query('author_name=Radek&showposts=2'); ?>
<?php while ($my_query->have_posts()) : $my_query->the_post(); ?>
<a href="<?php the_permalink() ?>" title="<?php the_title(); ?>">
<?php the_title(); ?></a>
<?php endwhile; ?>