How to display important text in the top of every page or post

[nadeem34]

I want to display a text on the top of every page or post how can i do this

The text should be like this

"You must login to post new threads or replies"

And if possible i also want to insert a "register here" link to the text

[skb]

You could use this mod

https://custom.simplemachines.org/mods/index.php?mod=4096

[Sir Osis of Liver]

Maybe this -

https://custom.simplemachines.org/mods/index.php?mod=3703

or this -

https://custom.simplemachines.org/mods/index.php?mod=351

Or you can just code it in index.template.php.