Get_posts attachments showing all images in media library not just page

Hi,

I’m trying to display all images in a page’s gallery on the page so I can use JQuery Cycle to make a slideshow. I can make the images and slideshow work except that it is displaying all the images in the media library, not just those on the page…

I’ve got this in my functions.php

function display_images_in_list($size = full) {

	if($images = get_posts(array(
		'post_parent'    => get_the_ID(),
		'post_type'      => 'attachment',
		'numberposts'    => -1, // show all
		'post_status'    => null,
		'post_mime_type' => 'image',
                'orderby'        => 'menu_order',
                'order'           => 'ASC',
	))) {
		foreach($images as $image) {
			$attimg   = wp_get_attachment_image($image->ID,$size);

echo $attimg;

		}
	}
}

and then in the single.php (within the loop)

<div class="slideshow-images">
<?php display_images_in_list('full'); ?>
</div>

Can anyone help?