Twitter Bootstrap Photo Gallery

ssgallery_function.php
function image_from_database() {
    $result = mysql_query("SELECT * FROM screenshots ORDER BY date_sub DESC");
    $count = mysql_num_rows($result);
    while($count < 4 && $row = mysql_fetch_array($result))
    if ($count > 4) {

            while($row = mysql_fetch_array($result)) {

                    echo '<div class="span3">';
                    echo '<img src="'.$row['thumbnail_link'].'" />';
                    echo '<h4>'.$row['header'].'</h4>';
                    echo '<p>'.$row['description'].'</p>';
                    echo '<p><a class="btn" href="view_image.php?image_id='. $row['photo_id'] .'">View details &raquo;</a></p>';
                    echo '</div>';

            }

        }
}
ssgallery.php
<div class="container">
    <h1 class="text-center">The American Pacific Group ScreenShot Gallery</h1>
    <hr>
    <div class="row-fluid">
        <?php
            echo image_from_database();
        ?>
    </div>
</div>