Facebook Iframe App with multiple pages in Safari Session Variables not persisting

I have a facebook Iframe application with multiple PHP pages in it.

I have some links that point relatively to the files inside my "iframe folder".

Having some issues with session variables inside the iframe. I set some session variables but they do not persist from one page to another.

This does work on other browsers.

I've been reading that Safari does not support Cross-Domain cookies and this might be the problem , but im not sure how to fix this.

Any help?