public function render(Varien_Object $row) { $html = ''; $url = Mage::getBaseUrl('media') . 'amlabel/'; if ($row->getCatImg()) { $html = '<img style="max-width:100px" src="' . $url . '/' . $row->getCatImg() . '" />'; } else { $html = Mage::helper('amlabel')->__('No Image'); } return $html; }