How to get tracking status offline

I have several users using a title offline and the info is going to be store in a db. How can I keep track of where the student last visited, is there a variable that I can use and store? I am already tracking status throughout the title, and want to put the student back when he/she login again and the title starts. I could store the last location (page, chapter) but that will not help because the student can go anywhere in the menu table of content.

I was thinking about creating a binary string or 1's and 0's (1=been there, 0=not there) for each chapter, section, and then convert the string to a decimal value, store it and when I retrieve do the inverse (decimal to binary [string]) but the problem would be how to select each bit position to decode. Maybe the decoding has to be done in js?

Any suggestions....

Thanks,

Luis

Discussions have been disabled for this post