Magento how to add JS tracking code to specific category pages and checkout pages
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We are using Floodlight which consist of JS tracking codes that need to be added on individual pages. I need to add a snippet of JS code on the home page, checkout and thank you page. But the biggest problem is, how do I add custom JS code to the category pages?

These pages are dynamic and there are no single template to add for each individual page. I can't find any where in Manage Categories in the admin how to add this either. 

Anyone have any clue? Or do I need to add a module to allow me?
