//440preview_maxlen
$_prefs['preview_maxlen'] = array(
    'value' => 250,
    'locked' => false,
    'shared' => false,
    'type' => 'enum',
    'enum' => array(100 => _("100 characters"),
                    250 => _("250 characters"),
                    500 => _("500 characters"),
                    1000 => _("1000 characters"),
                    -1 => _("All")),
    'desc' => _("Characters to display:")
);
