joomla home page detection code

$app    = JFactory::getApplication();
        $mymenu = $app->getMenu();
//        $mymenu = JSite::getMenu();


        if (isset($mymenu->getActive()->id) && isset($mymenu->getDefault()->id)) {
            $active_id  = intval($mymenu->getActive()->id);
            $default_id = intval($mymenu->getDefault()->id);
            if (($active_id == $default_id) && !$skipfront) {
                return;
            }
        }