Function to show random posts from a category

by

cleaned up syntax errors:

<?php function titoloslide() { 
query_posts(array(
  'orderby' => 'rand', 
  'category_name' => 'testimonianze', 
  'posts_per_page' => 1
)); 
if (have_posts()) : while (have_posts()) : the_post(); ?>
 <div class="testimonianzefurgonihome"><a href="#" title="Testimonianze noleggio furgoni KobalRent"><?php the_excerpt(); ?></a></div>
<?php endwhile; endif; wp_reset_query(); 
}
?>