public function executeRender()
{
	$product = ProductPeer :: retrieveByPermalink($this->getRequestParameter('permalink'));
	$this->forward404Unless($product instanceof Product);

	$this->getResponse()->setHttpHeader('Content-type', 'image/jpeg');
	$this->getResponse()->setContent(base64_decode($product->getImage()->getContents()));
	$this->getResponse()->sendHttpHeaders();
	$this->getResponse()->sendContent();

	return sfView :: NONE;
}