Gästbok- fler funktioner

<?
$link = mysql_connect("address", "username", "password");
mysql_select_db("database", $link);
$offset = 0;
$step = 8;
$post = 0;
$query = "SELECT * FROM guestbook";
$result = mysql_query($query, $link);
while($array = mysql_fetch_array($result)) { $post++; }

if($_GET['offset']) { $offset = $_GET['offset']; }
if($offset > $post) { $offset = 0; }
else if($offset < 0) { $offset = 0; } 
?>
<div>
    <?
    if($offset != 0)
    {
        $prev_offset = $offset-$step;
        echo "<a href='site.php?page=news&offset=$prev_offset'> « Prev </a>";
    }
    else
        echo "« Prev";
    ?>
    <font style='padding: 0px 30px 0px 30px;'>
    <?
    $pages = $post/$step;
    $i = -1;
    while($i<$pages-1)
    {
        $i++;
        $num=$i+1;
        $off = $i*$step;
        if($_GET['offset'] != $off)
            echo "<a href='site.php?page=news&offset=$off'> $num </a>";
        else
            echo " $num ";
    }
    ?>
    </font>
    <?
    if($offset<$post)
    {
        $next_offset = $offset+$step;
        if ($next_offset < $post)
            echo "<a href='site.php?page=news&offset=$next_offset'> Next »</a>";
        else
            echo "Next »";
    }
    ?>
</div>