Magento : get customer login status

<?PHP

//get customer login status ?>

<?php $myStatus = Mage::getSingleton('customer/session')->isLoggedIn() ?>

<?php if($myStatus): ?>

<li><a href="/customer/account/index" title="Customer Register">My account</a> |</li>
<li><?php echo $this->getLayout()->getBlock('header')->getWelcome() ?></li>

<?php else: ?>

<li><a href="/customer/account/index" title="Customer Register">My account</a></li>
<li><a href="/customer/account/create" title="Customer Register">Register</a></li>

<?php endif ?>

?>