Show button after login

Tags: php,css

Problem :

i have a joomla login component,now i want when user successfully logs in to show a button that is hidden by css with is how i tried...

<?php if (true === $app->login($credentials, $options)) {
        // Success

        $app->setUserState('', array());
        $app->redirect(JRoute::_($app->getUserState('users.login.form.return'), false));

    } else {
        // Login failed !
        $data['remember'] = (int)$options['remember'];
        $app->setUserState('', $data);
        $app->redirect(JRoute::_('index.php?option=com_users&view=login', false));

Solution :

this is how i did it eventually...

<?php $user =& JFactory::getUser();

window.addEvent('domready', function() {
  $$('.formBtn').setStyle('display', 'block');

echo "NOT LOGGED!";


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