```php
    // the top level menu items are stored as an array
    $menuItems = array(' href="index.php">Home',
                       ' href="activities.php">Activities',
                       ' href="about.php">About',
                       ' href="profile.php">My Profile',
                        ' href="#" class="icon" id="menuicon" onclick="toggleClass(\'topnav\', \'menuicon\')"><b>&equiv;</b>');

    // write the opening structure of the menu

    echo '<div id="topnav" class="menu">';
    // write the individual menu items
    $menuCount = count($menuItems);
    for ($i = 0; $i < $menuCount; $i++) {
        echo "\n<a";
        if ($section == $i) { // if an item is selected, add the correct class spec
            echo " class='selected'";
        }
        echo  $menuItems[$i] . "</a>";
    }

    // write the closing structure of the menu
    echo "\n
        </div>";
}
```
That is where i build the menu