Tracking students across sessions?

Hi,

I'm trying to figure out how a student could take a review multiple times (say spelling) and each time eliminate the areas where they have achieved mastery so that they are only reviewing areas where they still need work.  The obvious way that comes to mind is create a text file on the server recording the questions they get right and then read the text file the next session to create conditionals to skip questions they've mastered.  However, given the limits with the Articulate Player for javascript, I'm hoping there is a subtle way to do this that would allow tracking between sessions.  Any thoughts?

Thanks,

Mark