6 theme calls to theme_maintenance_page() in Drupal 4

db_connect in includes/database.mysqli.inc

Initialise a database connection.

db_connect in includes/database.mysql.inc

Initialize a database connection.

db_connect in includes/database.pgsql.inc

Initialize a database connection.

db_set_active in includes/database.inc

Activate a database for future queries.

drupal_site_offline in includes/common.inc

Generates a site off-line message

update_progress_page_nojs in ./update.php

Perform updates for the non-JS version and return the status page.