Wordpress - Sidebar/pages - Restricted to subdomain

Hi All,

I'm currently running a pluging which allows me to show pages only per certian subdomains.

For example I currently have a page called Gallery which is only shown on nomadsnirvana.com, but not

.

This is basically controlled through the categories of my wordpress site.

Now I'm wondering if there is a way to restrict the sidebar to only show on certain domains.
So I have have a different side bar on different subdomains?