public function renderTreeNode(Varien_Data_Tree_Node $node, $indentLevel=0)
    {
        $block = $this->getLayout()->createBlock('sheep_debug/view');
        $block->setRequestInfo($this->getRequestInfo());
        $block->setTemplate('sheep_debug/view/panel/_block_node.phtml');
        $block->setNode($node);
        $block->setIndent($indentLevel);

        return $block->toHtml();
    }