Cronjob for Magento to send any order-emails that have not been sent yet

yr_magento_order_send_unsent.php

<?php
require_once 'app/Mage.php';
Mage::app();
Mage::app()->setCurrentStore(Mage_Core_Model_App::ADMIN_STORE_ID);

$from_date = date('Y-m-d', time() - (60*60*24*14));
$orders = Mage::getModel('sales/order')->getCollection()
    ->addAttributeToFilter('created_at', array('from' => $from_date))
    ->addAttributeToFilter('email_sent', array('null' => true))
;

foreach($orders as $order) {
    if($order->getCanSendNewEmailFlag() != true) continue;
    if($order->getStatus() != 'canceled') continue;
    $order->sendNewOrderEmail();
}