Can I ask if there will be the possibility to integrate that script here in this forum (without using an external extension)? Thanks for the attention.
One way would be to create a forum theme that contains my script. That way it's available to every user and can be enabled/disabled from the user control panel. You'll have to petition theymos to do that though.
Another way (which I mentioned before), would be to use a proxy that injects the script.
Thanks for the reply, so we should open a thread and ask to theymos if he can add this script here in the forum. I think someone of us will do this (when it will be necessary). The second option is more "risky" than the first, or am I wrong? Maybe it is better the first option.