Load a Flickr photo set and then display a random photo from that set

flickr-random-photo.php

<?php
/**
 * Raam Dev - http://raamdev.com/
 * 
 * This code loads a Flickr Photo Set and then picks a random photo from that set
 * After configuring your settings and loading the PHP, you can display the random photo as follows:
 * <a href="<?php echo $flickr_img_url_large; ?>" title="<?php echo $flickr_photo_description; ?>">
 * <img title="<?php echo $flickr_photo_description; ?>" border="0" src="<?php echo $flickr_img_url; ?>" />
 * </a>
 *
 * See the home page on http://raamdev.com/ to see this code in action.
 */

// Set your Flickr API Key, User ID, and Flickr Album ID
$flickr_api_key = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'; // Your own API key (get one here: http://www.flickr.com/services/apps/create/apply/)
$flickr_user_id = '89743353@N00'; // Your numeric user ID. Look up your ID here: http://idgettr.com/
$flickr_album_id = '72157626450096422'; // ID of the photoset; you'll see this in the URL when you visit the photoset on Flickr

// Get a list of all photos in specified photoset and load the result into an array
$flickr_list_of_photos = "http://api.flickr.com/services/rest/?method=flickr.photosets.getPhotos&api_key=$flickr_api_key&photoset_id=$flickr_album_id";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $flickr_list_of_photos);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$flickr_list_of_photos_xml = curl_exec($ch);
curl_close($ch);
$flickr_photos = simplexml_load_string($flickr_list_of_photos_xml);

// Get the last item in the array, since it's the newest photo in the set
$flickr_item = rand(0, count($flickr_photos->photoset->photo) - 1);

// Get the data for that photo so that we can build the image URL
$flickr_photo_id = $flickr_photos->photoset->photo[$flickr_item][id]; 
$flickr_secret = $flickr_photos->photoset->photo[$flickr_item][secret];
$flickr_server = $flickr_photos->photoset->photo[$flickr_item][server];
$flickr_farm = $flickr_photos->photoset->photo[$flickr_item][farm];
$flickr_title = $flickr_photos->photoset->photo[$flickr_item][title];

// Build URL to the photo (appending _b to the filename gets the large size)
// See here for more on building URLs: http://www.flickr.com/services/api/misc.urls.html
$flickr_img_url = "http://farm$flickr_farm.static.flickr.com/$flickr_server/" . $flickr_photo_id . "_" . $flickr_secret . ".jpg";
$flickr_img_url_large = "http://farm$flickr_farm.static.flickr.com/$flickr_server/" . $flickr_photo_id . "_" . $flickr_secret . "_b.jpg";

// Get information on the photo, including description
$flickr_photo_info_xml_url = "http://api.flickr.com/services/rest/?method=flickr.photos.getInfo&api_key=$flickr_api_key&photo_id=$flickr_photo_id";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $flickr_photo_info_xml_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$flickr_photo_info_xml = curl_exec($ch);
curl_close($ch);
$flickr_photo_info = simplexml_load_string($flickr_photo_info_xml);

// Extract the description; if there is no description, use the title instead
$flickr_photo_description = $flickr_photo_info->photo->description;
if ('' == $flickr_photo_description) { $flickr_photo_description = $flickr_photo_info->photo->title; }

/**
 * Now you can display the random photo with some HTML like this:
 * <a href="<?php echo $flickr_img_url_large; ?>" title="<?php echo $flickr_photo_description; ?>"><img title="<?php echo $flickr_photo_description; ?>" border="0" src="<?php echo $flickr_img_url; ?>"></a>
 */
?>

Dont run :(

PHP?, seems JS would be ideal.