magento - Product category name on product viewing page -

magento - Product category name on product viewing page -

i'm working on website. upon clicking product shows details of it. client want me show parent category of categroy of product @ top, above image. please help me it. i'm budding developer.

try may help else.

<?php $_helper = $this->helper('catalog/output');?> <?php $_category_detail=mage::registry('current_category');?> <?php $_category_detail->getname();?> <?php $_category_detail->getid(); ?>

magento magento-1.7