<?php
class LightboxPage extends Page {
}

class LightboxPage_Controller extends Page_Controller {
    public function LightboxPhotos() {

        $queryid = Session::get('MyLightbox');

        $photos = Photo::get()->filter(array(
            'ImageID' => $queryid
            ))->sort('Created DESC');

        var_dump($queryid);
        return $photos;
    }
}