Part of header navigation gone while logged in

[nyderrn]

<td align="right" class="headerNavigation"><a href="<?php echo tep_href_link(FILENAME_CREATE_ACCOUNT); ?>" class="headerNavigation"><?php echo HEADER_TITLE_CREATE_ACCOUNT; ?></a>  |  <a href="<?php echo tep_href_link(FILENAME_SHOPPING_CART); ?>" class="headerNavigation"><?php echo HEADER_TITLE_CART_CONTENTS; ?></a>  |  <a href="<?php echo tep_href_link(FILENAME_CHECKOUT_SHIPPING, '', 'SSL'); ?>" class="headerNavigation"><?php echo HEADER_TITLE_CHECKOUT; ?></a>

 

How would I change this code so that when the customer logs in the create_account section disappears?

 

Thanks

Tim