I can't answer your questions but I would draw your attention to this accessibility validator:-
http://www.miislita.com/searchito/ac...validator.html
All webpages should conform to accessibility standards (which are a legal responsibility for business sites though I am not sure whether private sites are covered by the law).
Code downloaded to my PC will be deleted in due course.
WIN7; IE9, Firefox, Opera, Chrome and Safari for Windows; screen resolution usually 1366*768.
Also IE6 on W98 with 800*600 and IE8 on Vista 1440*900.