WordPress: Get image attachments

gistfile1

function get_image_attachments( $size = 'thumbail', $ID ) {
	$featured_image_id = get_post_thumbnail_id( $ID );
	$args = array(
		'post_type' => 'attachment',
		'post_mime_type' => 'image',
		'numberposts' => -1,
		'orderby' => 'menu_order',
		'order' => 'ASC',
		'post_parent' => $ID,
		'exclude' => $featured_image_id
		);
	$images = get_posts( $args );
	$results = array();
	if ( $images ) {
		foreach ( $images as $image ) {
			$results[] = wp_get_attachment_image( $image->ID, $size );
		}
	}
	return $results;
}