PHP: Using session variables set in an iframe in multiple iframes

[midymido]

I use a content management system called liferay that lets you add iframes to a page very easily. I have various different iframes that i want to use the same php session variables. This wouldn't be an issue if the main webpage was setting the sessions. the problem is the sessions are created in one iframe and I'm wanting to use them in another? Normally the session id could be passed via the url but that's not how I have it set up. There is no navigation like that. the iframes display content from a database based on the session variables set up in the first iframe, but they are not linked. Can someone help me out here? I'm not sure how else iframes can share session variables. Thanks,Jonesy