PHP Sub-Routine

Hi! I have a little problem! I wrote follwing code! <?php $type = 'file'; //$type = 'db'; // determine the tracker type if ($type == 'file') { require_once 'docs/php/IPTracker/IPTrackerFile.php'; $tracker = new IPTrackerFile('docs/php/IPTracker/ip.log'); } else { require_once 'IPTrackerDB.php'; require_once '../abstractdb/AbstractFactory.php'; $db = AbstractFactory::getDbLayer('MYSQL', '', 'mysql'); $tracker = new IPTrackerDB($db, 'localhost', 'php', '', ''); } // track the current visitor $tracker->track(); ?> If my file ist called index.php, it runs without problems! If I call the file index.html (should also work) he can't parse the line with $tracker->track(); He interpretes the "->" wrong! Is there a other way to call a sub routine in php (without ->)??? Why are these two commandos in php and html the same with other functions? There is a redunancy-bug!!! Regards, Hermann.