Been playing with this idea for quite some time now. As it is now this skin is just a proof-of-concept and nowhere near anything that can replace other skins.
How it works: The page requests a php script with ajax, this generates an xml file, which is transformed into html by an xslt stylesheet.
There is a problem with the default amuleweb that prevents it from working and a patch is needed which enables it to serve files with some other extensions as well.
Then there are some more problems: amuleweb php doesn't support the header() function, so this won't work in IE. Also in Opera there is another problem traversing DOM that I haven't figured out yet.
Actually, I only got it to work in Firefox.
Attached are the skin and a patch for amuleweb file src/webserver/src/WebServer.cpp
Please try it out