Possible Duplicate:
Cross domain PHP Sessions
I have an IIS6 / WIMP system.
When a user visits a page on:
then a page on:
I need the session id to stay the same. I do not need to retain the session variables, just the session id. Each sub domain is setup as a separate site in IIS.
I would like to configure this through IIS, but if I have to do it through php that would work as well.