gistfile1.php

class Prpl_Controller_Action_Helper_Url extends Zend_Controller_Action_Helper_Url 
{
    public function url($urlOptions = array(), $name = null, $reset = false, $encode = true) 
    {
        if (!isset($urlOptions['locale'])) {
            $urlOptions['locale'] = Zend_Registry::get('Zend_Translate')->getLocale();
        }
        return parent::url($urlOptions, $name, $reset, $encode);
    }
}