Error message

• Notice: Undefined offset: 1 in sit_default_preprocess_html() (line 17 of /var/www/drupal-7.14/sites/all/themes/sit_default/template.php).
• Notice: Undefined offset: 1 in sit_default_preprocess_html() (line 22 of /var/www/drupal-7.14/sites/all/themes/sit_default/template.php).
• Notice: Undefined offset: 1 in sit_default_preprocess_html() (line 22 of /var/www/drupal-7.14/sites/all/themes/sit_default/template.php).