gistfile1.aw

function render($template, array $params = array(), array $options = array()) {
	
		$session	= $this->getSession();
		
		if(!isset($params['isAjax']) && !$this->is('ajax')) {
	
			if($this->isLoggedIn()) {
	
				$params['nombre'] = $session->get('nombre');
			}
	
		}
		
		parent::render($template, $params, $options);
	
	}

function isLoggedIn() {

    if ( ! $this->getSession()->exists( "nivel" ) ) {
        return true;
    } else {
        return false;
    }
}

<?php
function isLoggedIn() {
    return $this->getSession()->exists('nivel');
}