updated sample html pages
Add basic styles, move navigation below content
Update IE markup
Remove absolute positioning on header elements
Comment head elements
Add script tags
Update scripts
Update pagetype4-update.html

Updated scripts, etc., based on updates to pagetype2-update.html
Update index: inc page type 4
Update index
Put links into list form
Update pagetype4-update.html

Changed the search function to match pagetype2-update.html
Add WAI-ARIA roles to main page elements

#main-header - role="banner"
#content - role="main"
#primary-nav, #secondary-nav - role="navigation"
#search-container - role="search"
footer - role="contentinfo"
Fix validation errors

Some unclosed headings, stray end div tags. Also, DIV is not
permissible inside UL, so all DIV class="left" inside primary
navigation have been converted to LI class="left" > UL
Update style link to style.css

Add media query and stylesheet link
Remove role="form" (not needed as per W3C)

https://dvcs.w3.org/hg/aria-unofficial/raw-file/tip/index.html
Add style.css