[ solved ] POST var using ajax to specify "session"

[Jim from Oakland]

Eh Jacks!

This is MOSTLY a session question but I'm doing ajax so...

I was able to hack ajax so that I can cycle through separate survey questions individually and retrieve user responses (in the ajax request processor) using  post variables.

But, I need to keep track of the responses for all questions as they are submitted. I send the form's unique id (as a post variable) each time a question is submitted and want to use that string (letters and numbers only so it should be a vaild session id) to specify/identify a session.

So, in the script that processes the ajax request foreach question how do I use the string in $_POST['Ref'] to reinstate a session?