'post_parent', 'id' => 'ID');
function start_lvl(&$output, $depth = 0, $args = array()) {
$indent = str_repeat("\t", $depth);
$output .= "\n$indent\n";
}
function end_lvl(&$output, $depth = 0, $args = array()) {
$indent = str_repeat("\t", $depth);
$output .= "$indent
\n";
}
function start_el(&$output, $page, $depth = 0, $args = array(), $id = 0) {
if ( $depth )
$indent = str_repeat("\t", $depth);
else
$indent = '';
extract($args, EXTR_SKIP);
$output .= $indent . '';
if($page->post_type == 'attachment')
{
$output .= wp_get_attachment_image($page->ID, 'thumbnail', true);
}
$output .= apply_filters( 'the_title', $page->post_title, $page->ID ) . '';
}
function end_el(&$output, $page, $depth = 0, $args = array()) {
$output .= "\n";
}
}