Does anyone have experience with managing 3rd party cookies?

As you know there is an EU law which will require that user consents to the use of cookies. I found a project is on similar lines where he wants to be able to identify 3rd party cookies using javascript parser or some other method… You can see description of project here… I would really appreciate your help… This may help me in getting the project…

Didn’t want to come across as a link spammer or something so haven’t posted as a link.

Thanks a lot.