champs de recherche

if(empty($fields)){
			$fields = array('product_name','product_description','product_keywords','product_meta_description','cle');
		}else{
			$fields = explode(',',$fields);
		}

$select = ' a.product_id AS id, a.product_name, a.product_created AS created , a.product_description ,a.product_meta_description,a.product_keywords,a.cle, "'.$new_page.'" AS browsernav';