//490sortby
// default sorting column
$_prefs['sortby'] = array(
    'value' => SORTARRIVAL,
    'locked' => false,
    'shared' => false,
    'type' => 'enum',
    'enum' => array(SORTARRIVAL => _("Arrival Time"),
                    SORTDATE => _("Message Date"),
                    SORTFROM => _("From Address"),
                    SORTTO => _("To Address"),
                    SORTSUBJECT => _("Subject Field"),
                    SORTSIZE => _("Message Size"),
                    SORTTHREAD => _("Thread View")),
    'desc' => _("Default sorting criteria:"));

