Help with Shared objects in MX- easy for advanced user!

Hi,

I’m currently designing a website which uses Flash MX animations to explain basic mathermaticals concepts to kids. There are about 20 of these ranging from fractions to multiplication etc. At the end of each one are some preset questions. What I want to do is to send a cookie/shared object to the user’s computer which remember’s each one they have done, and then when they log onto the site, suggest possible ones that they havent done. How could I do this?

I had a thought that you could somehow each one they have done (when parsing the cookie) into an array, check each one against the array of all possible animations, then pick 3 at random from that array, and play certain movie clips accordingly. Can anyone think of a better idea- help would be much appreciated as I’m quite new to Flash at the moment!

Many thanks

Chimpo