//230purge_trash
// purge Trash folder?
$_prefs['purge_trash'] = array(
    'value' => 0,
    'locked' => false,
    'shared' => false,
    'type' => 'checkbox',
    'desc' => _("Purge old messages in the Trash folder?"),
    'help' => 'prefs-purge_trash');

