diff -r 5b37998e522e -r 162c1de6545a web/lib/Zend/Service/Amazon/Ec2/Availabilityzones.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/Zend/Service/Amazon/Ec2/Availabilityzones.php	Fri Mar 11 15:05:35 2011 +0100
@@ -0,0 +1,76 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Service_Amazon
+ * @subpackage Ec2
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Availabilityzones.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+/**
+ * @see Zend_Service_Amazon_Ec2_Abstract
+ */
+require_once 'Zend/Service/Amazon/Ec2/Abstract.php';
+
+/**
+ * An Amazon EC2 interface to query which Availibity Zones your account has access to.
+ *
+ * @category   Zend
+ * @package    Zend_Service_Amazon
+ * @subpackage Ec2
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Service_Amazon_Ec2_Availabilityzones extends Zend_Service_Amazon_Ec2_Abstract
+{
+    /**
+     * Describes availability zones that are currently available to the account
+     * and their states.
+     *
+     * @param string|array $zoneName            Name of an availability zone.
+     * @return array                            An array that contains all the return items.  Keys: zoneName and zoneState.
+     */
+    public function describe($zoneName = null)
+    {
+        $params = array();
+        $params['Action'] = 'DescribeAvailabilityZones';
+
+        if(is_array($zoneName) && !empty($zoneName)) {
+            foreach($zoneName as $k=>$name) {
+                $params['ZoneName.' . ($k+1)] = $name;
+            }
+        } elseif($zoneName) {
+            $params['ZoneName.1'] = $zoneName;
+        }
+
+        $response = $this->sendRequest($params);
+
+        $xpath  = $response->getXPath();
+        $nodes  = $xpath->query('//ec2:item');
+
+        $return = array();
+        foreach ($nodes as $k => $node) {
+            $item = array();
+            $item['zoneName']   = $xpath->evaluate('string(ec2:zoneName/text())', $node);
+            $item['zoneState']  = $xpath->evaluate('string(ec2:zoneState/text())', $node);
+
+            $return[] = $item;
+            unset($item);
+        }
+
+        return $return;
+    }
+}