How I can set a function in all pages ?

[eluser]lama[/eluser]
Hello everybody

I have a little problem...

I search in documentation but I found nothing...

I have a big project with CodeIgniter. I set a default layout where I include my views. Views are define with controller but I have to run a function on all page but I don't know how can I do it...

This function will show information to the user in the layout before including my view.

So I hope that I was clear... I'm blocked...

Thanks

Good night