Não me carregar os dados

<script type="text/javascript" language="javascript" src="js/jquery.js"></script>
<script type="text/javascript" language="javascript">
$(function($) {

$("#mais").click(function() {

var ultimo = $("#frases p:last").attr("lang");

$("#status").html("<img src='images/loader.gif' alt='Enviando' /><br>");

$.post("ajax/buscar.php", {ultimo:ultimo}, function(resposta) {

$("#status").empty();

$("#frases").append(resposta);
});
});
});
</script>
<?php
include "cont.php";
$query = mysql_query('SELECT * FROM anedota ORDER BY id_anedota LIMIT 0,5');
while ($row = mysql_fetch_object($query))
echo"<div class='post'>
<a href='verand-{$row->titulo}-{$row->id_anedota}'><h2>$row->titulo</h2></a>
<p lang='{$row->id_anedota}'>$row->anedota</p>

</div>";
?>

<div id="carregar"><span id="status"></span> <a href="javascript:func()" id="mais">Mais frases </a></div>

<?php
require_once('../cont.php');
$ultimo = (int) $_POST['ultimo'];
if ($ultimo==0)
{
echo "ERRO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!";
}
else{
$query = mysql_query("SELECT * FROM anedota WHERE id_anedota < $ultimo ORDER BY id_anedota DESC LIMIT 0,3");
while ($row = mysql_fetch_object($query))
echo"<div class='post'>
<a href='verand-{$row->titulo}-{$row->id_anedota}'><h2>$row->titulo</h2></a>
<p lang='{$row->id_anedota}'>$row->anedota</p>
</div>";
}
?>