How do you change the default text on the Page Not Found/Not Permitted?

Question

We have certain areas that are restricted in our Confluence site.  At times, the link to a restricted page appears on a parent / navigation page.  If a user who doesn't have access clicks the link, the user gets a Page Not Found error.  We would like to edit the default text on that page to explain that the page exists but the user does not have permission to view it.  If the user requires permission, they must contact "so and so" to obtain access.

Does anyone know of a way to do this?

Christ Christ · Answer

Thanks, David.  We just launched Confluence for our company and left the default text.  When we have some time, I will have the team try out your suggestion.

David at David Simpson Apps · Answer

Browse to Confluence Admin | Look & Feel | Custom HTML In At the end of the HEAD paste:

David at David Simpson Apps · Answer

Build a partial language pack. Details here: 
http://davidsimpson.me/2009/11/04/changing-boilerplate-text-in-confluence/