Hi, my name is Francesco.
I'm making a custom theme.
Where do I need to add, or where do I need to modify, to include the new javascript code for specific pages? (For example: only on topics.tpl).
Thanks.

Can you do it via blocks and adjust visibility and permissions???

Technically I could, but if I add js files within the theme folder, overwrite the default theme js files?

Do you mean append javacript to any existing js files in the theme ?