Passing variables between pages

Hi everyone, Stupid question of the week... A array variable is not being passed between 2 pages. Are my options: #1. Use sessions? #2. Use cookies? #3. Use a hidden form to pass the variable's around? Here's some context... I am working on a timecard system where they are presented the main page, where they login they are brought to a screen where they need to clock in/out. It all starts working great, but when they clock in/out it loses the variable that says they are logged in so it tries to re-authenticate them which doesn't work since the username/password are no longer in the $_POST array... I can provide code if needed, but I think it's just a logic problem on my end :) -- Jason Pruim Raoset Inc. Technology Manager MQC Specialist 11287 James St Holland, MI 49424 www.raoset.com japruim@raoset.com