1 image location, changes images depending on what link is rolled over...

I have seen a javascript for this a few years ago, but I want to avoid it, since Im sure it's not needed as rollover code is simple HTML.

I want to have a similar implementation of what is done here: http://www.al-oholicsanonymous.com/ , to be on my site, but the links on my site are not graphics, but can be, if that would be eisier... ( I mean, what I want to do, is to have the preloaded, changing images be at the top of my page, & under it, the navigation links, like; Main - Contact - Links, etc... and so, just like the site I have shown as an example, (the weird al site), I want to do this WITHOUT using Javascript.

Thanks, I really have to get my site up this weekend!

Perhaps CSS, or if not necesary, I'd rather stick to pure HTML, to be 100% compatable with ALL browsers, because http://criticalunity.org , will be a site necessary for our freedoms... World issues are serious, & I seriously need help with OUR site... (there is nothing to link to yet, because I havnt upladed the main page yet, just the index, introduction, language selection, but when I figure out how to do ehat I want, it'll be uploaded, & when you click on 'English" , it'll go somewhere (to the page showing my sucess with aceiving what is desired.