Does anyone know how to keep all the pages of your site behind 1 warning page?  There is a great plug in on wordpress that integrates this with the blog but I haven’t been able to find a way to do it to html pages.

A few ways come to mind. What is the format of your site? It’s all html pages? I suppose you want the warning to come up even if they go directly to a page within your site, and not just on the main index, right?

Yes, html....  I use wordpress for my blog and there is a plug in for this, but it’s in php.  It sets a cookie or something and if that cookie is not there it pops up a warning page.  Of course, that’s php. I’ve been out of the webmaster loop for 10 years and I have alot of catching up to do.