Hi Maarten,
Basically you can just add it. A few tips: If your exist pages use the same variables (such as $record) just change the variables on your newly generated code. Also, if you put it in an include it will be easier to insert one line to add it to the pages.
But basically you just add the code in. Give it a try and let me know how it goes.
Dave Edis - Senior Developer
interactivetools.com