Ajax call to PHP on different domain?

As per the title, I wish to make an AJAX call to a script on a different domain - realise this is a security problem, but is this at all possible?

My client is embedding html web pages into his ebay listings, and he wants to centrally update the product information. Maybe there is a different / better way to go about this?

Many thanks and kind regards

I found this tutorial but i wouldn’t connect to an outside server unless both the server sending the information was in SSL mode

Take a look at JSONP: http://insideria.com/2009/03/what-in-the-heck-is-jsonp-and.html

Thankyou both for your very helpful input. In the end I went for a JSON solution and it works great :cool: