no empty div

<?php
$count = 0;
$result = '';
$catposts = get_posts('cat=8&&numberposts=0');
if ( $catposts ) { //if there are any posts
  foreach($catposts as $single):
    setup_postdata($single);
	$mylimit=1 * 7200; //days * seconds per day
	$post_age = date('U') - mysql2date('U', $single->post_date_gmt);
	if ($post_age < $mylimit) {
      $count++;
      if ( $count < 4 ) {  // only process 3

        $result .= '<a href=';
        $result .=get_permalink($single->ID).'>'.$single->post_title.'</a>';
      }
    }
  endforeach;
if ($result ==''){}
else{ ?>
<div id="whatshot">
<?php
echo "<h2><a href='/category/hot/'>The Latest</a></h2><ul>";
echo $result."</ul>"; ?>
</div>
<?php
}
}
?>