Limit

hvad er fejlen i det here:
        <?php
        include("config.inc.php");
        global $mysqlconn;
        if ($_GET["first"])
        $first = $_GET["first"];
        else
        $first = 0;
        $second = $first+5;
        $sql = "SELECT * FROM `venirl` ORDER BY id ASC LIMIT $first,$second";
        $result = mysql_query($sql, $mysqlconn);
        while ($venirl = mysql_fetch_array($result)) {
        ?>

        <?php
        }
        ?>
        <?php
        if ( $first > 0 ) {
            $second = max( 0, $first-5 );
            echo "<a id='CypraZ' href='". $_SERVER['HTTP_SELF'] ."?side=venner&first=$second'>vis forrige side</a> | ";
        }
        $first = $first+5;
        echo "<a id='CypraZ' href='". $_SERVER['HTTP_SELF'] ."?side=venner&first=$first'>vis næste side</a>";
        ?>