Warning: require_once(chkHostname.php) [function.require-once]: failed to open stream: No such file or directory in /home/admin/nats/www/spam.html on line 3

Fatal error: require_once() [function.require]: Failed opening required 'chkHostname.php' (include_path='.:/usr/local/apache2/lib/php') in /home/admin/nats/www/spam.html on line 3