function login(){
	$registry = Zend_Registry::getInstance();
	$db = $registry->get('db_adapter');

	$adapter = new Zend_Auth_Adapter_DbTable($db);
	$adapter->setTableName('users')->setIdentityColumn('username')
			->setCredentialColumn('password_unencrypted')
			->setIdentity($username)
			->setCredential($password);

	$auth = Zend_Auth::getInstance();
	$result = $auth->authenticate($adapter);

	if($result->isValid()){
		$identity = $adapter->getResultRowObject(null, 'password_unencrypted');
		$auth->getStorage()->write($identity);
		$redirector = Zend_Controller_Action_HelperBroker::getStaticHelper('Redirector');
		$redirector->gotoUrl('/index/');
	}
}

/*******************************************************/
class indexController extends Zend_Controller_Action{
	public function init(){
		$auth = Zend_Auth::getInstance();

        	if ($auth->hasIdentity()) {
            		$userTable = new User_Table();
            		$select = $userTable->select()->where('id = ?',
				$auth->getIdentity()->id);
            		$this->view->currentUser = $userTable->fetchRow($select);
            		$adminNamespace = new Zend_Session_Namespace('Admin');

        	} else {
			echo 'Zend_auth has no identity'; // this always prints
        	}
	}
}