WordPress MU

Is there a hack or plugin that would allow me to have a global header across all themes, etc, without installing it into every theme?

Thanks!

http://blogolia.com

Sure look at the solution for admin bar in http://mu.wordpress.org/forums/topic.php?id=1890&replies=12

This is an 'admin' bar though. I wanted something that every user saw, that would bring them back to the main domain, and allowed them to go to the "Next Blog" or search all blogs.

Or is this exactly what this is?

Nope this is an admin bar that provides access to the admin functions of the blog. You would have to alter the code of mu-admin-bar.php to provide the functions you want. I just told you how to make it show at the top of every blog without having to modify all the themes. You can find code for the Next and Previous blog in admin/wpmu-blogs.php I think. The search code should also be easily grabbed from the existing code base and going back to the main site is a simple <a> tag. Maybe someone else could cobble together a plugin similar to admin bar that would do what you want.

thanks kahless, it seem slike it would be a popular hack as it gets the blog users back to the orignial place they set up their blog, and gets other users reading those blogs to sign up.

We discussed the "next blog" link previously and what coding it would entail to do such a link. I don't think anyone ever followed up on it actually.

I think this would be a great plugin...I've checked out wpmu-sk2 as it inserts a footer.