Sample pages that fail validation

The main 'sample.html' passes validation fine, however some other pages fail xhtml 1.0 strict validation. Mainly due to the use of the + symbol in name anchors. Not a problem for sites validating to HTML4.01.

These pages include (but check for more)

samples-b/usemap.html
samples-b/xinclude.html
samples-b/static.html
samples-b/linking.html
samples-b/howto-wowto.html
samples-b/embedded_html.html
samples-b/ascii-art.html
locationmap/index.html
samples-c/subdir/index.html
samples-c/showonlywhenselected/page1.html
samples-c/showonlywhenselected/page2.html
pluginDocs/plugins_0_90/index.html