diagnostic_using_thumbnails() )
$this->set_option( 'manually_using_thumbnails', true );
$options = array( 'thumbnails_heading', 'thumbnails_default', 'no_results' );
extract( $this->parse_args( $args, $options ) );
// a little easter egg: if the default image URL is left blank,
// default to the theme's header image. (hopefully it has one)
if ( empty($thumbnails_default) )
$thumbnails_default = get_header_image();
$dimensions = $this->thumbnail_dimensions();
$output .= '' . $thumbnails_heading . '
' . "\n";
if (have_posts()) {
$output .= '\n";
} else {
$output .= $no_results;
}
$this->enqueue_thumbnails( $dimensions );