extranet/application/models/Naf5.php

<?php
class Application_Model_Naf5 extends Zend_Db_Table_Abstract
{
	protected $_name = 'tabnaf5';
	
	public function __construct()
	{
		$dbConfig = new Zend_Config_Ini(APPLICATION_PATH.'/configs/databases.ini');
		$this->_db = Zend_Db::factory($dbConfig->db->sdv1);
	}
	
}