Controlling the attachment order?

I use this one to out put all the attachment that are attached to the page.

<?php
			$args = array(
			'order'          => 'ASC',
			'post_type'      => 'attachment',
			'post_parent'    => $post->ID,
			'post_mime_type' => 'image',
			'post_status'    => null,
			'numberposts'    => -1,
		);
		$attachments = get_posts($args);
		if ($attachments) {
			foreach ($attachments as $attachment) {

				echo wp_get_attachment_link($attachment->ID, 'thumbnail', true, true);
			}

		}
		?>

I can set the order as ASC or DESC but I would like it to be as the attachments are arranged in the Ad Image Gallery view. Sometimes it comes handy to reorder the images a bit.

All help appreciated! Thanks.