How to send a trackback using rss

I try to make a script which send a trackback to another blog , this being done after another script that is listing a series of articles taken by rss method.
The trackback function i want to run for each rss links.
I made a pretty nice code to do that, but i dont know if work or not!
the code is >

<?php
include_once(ABSPATH . WPINC . '/rss.php');
if($links = get_post_meta($post->ID, "Links", true))
{
$rss = fetch_rss("$links");
if ($rss)
{
$items = array_slice($rss->items, 0, 20);
echo '<ul>';
if ($trackback = true) {
foreach ($items as $item)
{
$desc = htmlspecialchars(substr(strip_tags($item['description']),0,400));
echo '<li><a target="_blank" href="'. $item['link'] .'" title="header=[] body=[' . $desc . ']">' . $item['title'] . '</a></li>';
trackback( $item['link'], $item['title'], "", "" ); }

}
}

}
else {
print 'Nimic de ar?tat...';
}
echo '</ul>';
?>

Can anybody verify my work?

Thx,
Cristescu Bogdan