- * @param string $sm_language translation used by user's interface
- * @param bool $do_search use browser's preferred language detection functions. Defaults to false.
- * @param bool $default set $sm_language to $squirrelmail_default_language if language detection fails or language is not set. Defaults to false.
+ * @param string $sm_language Translation used by user's interface
+ * @param bool $do_search Use browser's preferred language detection functions.
+ * Defaults to false.
+ * @param bool $default Set $sm_language to $squirrelmail_default_language if
+ * language detection fails or language is not set.
+ * Defaults to false.
+ * @param string $content_type The content type being served currently (OPTIONAL;
+ * if not specified, defaults to whatever the template
+ * set that is in use has defined).
+ *