public function getSiblings($includeNode=false)
    {
        $parent = $this->getParent();
        $siblings = array();
        if($parent && $parent->isValidNode())
        {
            $children = $parent->getChildren();
            foreach($children as $child)
            {
                if(!$includeNode && $this->isEqualTo($child))
                {
                    continue;
                }
                $siblings[] = $child;
            }
        }

        return $siblings;
    }