How to add category description under category

Here is the example:
You can see the example of this menu at http://www.cortevents.com, under furniture catalog. On a left hand side each category item has small text that is being pulled from category description field.

STEP1:
/app/code/core/Mage/Catalog/Model/Resource/Eav/Mysql4/Category/Tree.php
I’ve inserted following code on the line 234 (_getDefaultCollection function, after addAttributeToSelect(‘name’))

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->addAttributeToSelect('description')

STEP2:
/app/code/core/Mage/Catalog/Model/Category.php
I’ve added the following function at the end of the class

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public function getDescription() {
    return $this->_getData('description');
}

STEP3:
/app/code/core/Mage/Catalog/Block/Navigation.php
I’ve added the following code on line 177

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if ($level == 0) {
    $html .= '<span class="category-desc">'.$category->getDescription().'</span>';
}

OK, We done it.

From:http://www.igorkrasnykh.com