Código PHP:
<form onSubmit="return enviado()" method="post"
action="mc/procesar.php?<? echo session_name()."=".session_id() ?>" name="tag">
<tr>
<td align="center" class="Texto">
<div align="center"><?
if (isset($_SESSION['nnick'])) {
echo "<img src=mc/login.png>";
echo " <img src=habbies.nl/img/text-gen/es/".$_SESSION['habbo']."/0/.gif>";
echo " <a href=\"mc/logout.php\" class=\"EnlaceMenu\">[Desconectar]</a> ";
if (isset($_SESSION['nnick'])){
$nick = $_SESSION['nnick'];
}
else if (isset($_POST['nick'])) {