Publish in different domain

Hi there, hope someone code give me some advice, basically i have a app that is being used internally, in a company domain (ex: http:intranet.company.com), but basically the app generates dynamic content, basically generates galleries and newsletters, but the company wishes that the galleries and newsletters are viewed in a different domain (ex: newdomainname.com). How or what would be the best way to make it? Should i simply move the public files to the folder hosting of the newdomainname? I cannot move the hole aplication, only the view galleries and newsletters, because the company wants the management of the galleries be used in the company domain.

P.S. The applications and hosting are in the same server.