Как обернуть каждую ссылку меню в 4 div - Joomla 1.5: Вопросы по работе с меню

<?php

// no direct access
defined('_JEXEC') or die('Restricted access');


if ( ! defined('modMainMenuXMLCallbackDefined') )
{
function modMainMenuXMLCallback(&$node, $args)
{
	$user	= &JFactory::getUser();
	$menu	= &JSite::getMenu();
	$active	= $menu->getActive();
	$path	= isset($active)? array_reverse($active->tree) : null;

	if (($args['end']) && ($node->attributes('level') >= $args['end']))
	{
		$children = $node->children();
		foreach ($node->children() as $child)
		{
			if ($child->name() == 'ul') {
				$node->removeChild($child);
			}
		}
	}

	if ($node->name() == 'ul') {
		foreach ($node->children() as $child)
		{
			if ($child->attributes('access') > $user->get('aid', 0)) {
				$node->removeChild($child);
			}
		}
	}

	if (($node->name() == 'li') && isset($node->ul)) {
		$node->addAttribute('class', 'parent');
	}

	if (isset($path) && (in_array($node->attributes('id'), $path) || in_array($node->attributes('rel'), $path)))
	{
		if ($node->attributes('class')) {
			$node->addAttribute('class', $node->attributes('class').' active');
		} else {
			$node->addAttribute('class', 'active');
		}
	}
	else
	{
		if (isset($args['children']) && !$args['children'])
		{
			$children = $node->children();
			foreach ($node->children() as $child)
			{
				if ($child->name() == 'ul') {
					$node->removeChild($child);
				}
			}
		}
	}

	if (($node->name() == 'li') && ($id = $node->attributes('id'))) {
		if ($node->attributes('class')) {
			$node->addAttribute('class', $node->attributes('class').' item'.$id);
		} else {
			$node->addAttribute('class', 'item'.$id);
		}
	}

	if (isset($path) && $node->attributes('id') == $path[0]) {
		$node->addAttribute('id', 'current');
	} else {
		$node->removeAttribute('id');
	}
	$node->removeAttribute('rel');
	$node->removeAttribute('level');
	$node->removeAttribute('access');
}
		define('modMainMenuXMLCallbackDefined', true);
	}
	ob_start();
	modMainMenuHelper::render($params, 'modMainMenuXMLCallback');
	$menu_html = ob_get_contents();
	ob_end_clean();
	$menu_html = str_replace("<a", "<div><div><div><div><a", $menu_html);
	$menu_html = str_replace("</a>", "</a></div></div></div></div>", $menu_html);
	echo $menu_html;