Corion,
I may have misled you slightly - the simulation is a real time one that is on-going for several weeks.
What is required is that the simulator program starts up on its dedicated PC in the morning when it is turned on and runs through the day until it is switched off at night. The display program also runs on this dedicated PC showing real-time analysis and summary information, taking the feed from the simulator every 10 seconds (after each stage) and displays this data.
What I want is for the cgi program displaying the data to show a new page every 10 seconds, rather than (at the moment) tagging the HTML page on to the bottom of the previous one.
Does that help any?