Is it possible to pass local variables to live content?

i am trying to solve a problem and i think that i have a solution...i just don't know if its possible...here's the situation:

- an interactive cd with links to individual URLs; the user clicks a link and is
taken to a log in page (which is basically just a password input screen)

- if their log in is successful, they are then directed to the specific page they
clicked to, from the cd

my question is this:
say that from the cd , they click "link2"...is there a way to have flash store a variable (let's call it "link2" as well) in this LOCAL content, that i can then check with an if statement in the LIVE content

i am thinking that if the login page just has an if statement that looks for that variable ("link2" , "linkX" , etc), and then depending on its name, takes you to the appropriate page (link2.html, etc)

i just don't exactly know how to pass that variable from local content to a live flash site...can anyone help me wrap my head around this one? thanks for your time

Not entirely sure if this is what you're after but what about, on your cd, just use like:

www.awebsite.com/login/?fromLink=link2

And then pass that link2 variable like that and pick it up on the log in page?