public function setConfiguredUserAction()
    {
        $user = $this->getRequest()->getParam('user');
        Mage::getModel('core/config')
            ->saveConfig(Aoe_Scheduler_Helper_Data::XML_PATH_CRON_USER, (string) $user);

        $this->_getSession()->addSuccess($this->__('Configured cron user updated to be "%s"', $user));
        $this->_redirectReferer();
    }