private static function showCategoryTree($checked = array())
{
?>
<div class="category_tree">
<?php
require_once 'manager/CategoryManager.php';
$cat = CategoryManager::loadAllCategories();
$i = 0;
?>
<ul class="category_tree_level_0"><?php
foreach ($cat as $valore) {
$i = self::writeCategoryNode($valore, $i, 1, $checked);
}
?>
</ul><?php
?>
</div>
<?php
}