PHP Highlight menu

<?php
// Stackoverflow - Answer (Marriott81)
// Post: http://stackoverflow.com/questions/21852876/highlight-currently-menu-selection-php/21853232#21853232
// Question: highlight currently menu selection php
// Author: Kursion
// Date: 18-02/2013

if (!securePage($_SERVER['PHP_SELF'])){die();}
$parts = parse_url($_SERVER["REQUEST_URI"]);
$page_name = basename($parts['path']);

//Links for logged in user
if(isUserLoggedIn()) {
?>

<div id='Default'>
  <ul>
      <li><a class="<?php echo ($page_name=='account.php')?'selected':'';?>" href="account.php">Account</a></li>
      <li><a class="<?php echo ($page_name=='user_settings.php')?'selected':'';?>" href="user_settings.php">User Settings</a></li>
      <li><a class="<?php echo ($page_name=='logout.php')?'selected':'';?>" href="logout.php">Logout</a></li>
  </ul>
</div>

<div id='button1 <?php echo ($page_name=='Demos.php')?'selected':'';?>'>
  <a href='/Demos.php'>Demos</a>
</div>
<div id='button2 <?php echo ($page_name=='Helpfiles.php')?'selected':'';?>'>
  <a href='/Helpfiles.php'>Helpfiles</a>
</div>

<div id='greeting'>
Hello, <?php echo $loggedInUser->displayname; ?>
</br>

<?php } else { ?>
      <li><a class="<?php echo ($page_name=='login.php')?'selected':'';?>" href="login.php">Login</a></li>
      <li><a class="<?php echo ($page_name=='register.php')?'selected':'';?>" href="register.php">Register</a></li>
      <li><a class="<?php echo ($page_name=='forgot-password.php')?'selected':'';?>" href="forgot-password.php">Forgot Password</a></li>
<?php } ?>