monitoring iframe content/status from the parent page
<p>What methods are available to monitor the status of IFRAME page, I know there are security limits but I hope some small notification system is still possible.</p>

<p>My situation is that I have created a parent page that is located on customer's server, and this page has has iframe page located on my server (my domain).  I need to somehow communicate a little between these two:  </p>

<p>Can I make javascript to the parent page that can check if my iframe page has a specific string on it,  or somehow make iframe page to notify the parent page?</p>

<p>Is there e.g. any possibility to make a timer that checks iframe content time to time?</p>

<p>I also accept answer how  mydomain/client.page calls callback on customerdomain.intranet.com/parentpage.htm  that has client on iframe</p>
