Okay, so I have a page that consists of several iFrames containing "steps" to a signup process (one is basic info, another education, etc..). Anyway, each iFrame pushes the new information to the mySQL server via jQuery $.post calls and a collection of PHP files.. So, in one iFrame, the information is pushed to a PHP file, which sends it to the server and then stores the user's id in a $_SESSION['userid'] variable. Then, I try echoing this same variable under the education iFrame to see if it can read the session info. However, the value returns blank. After some research, I realized I needed to include a session_start() function, so I stuck this in my parent window before the <HTML> tag. However, it's still not working. I hope you guys can understand me... Any advice? Thanks in advance. What am I doing wrong?