Accessible MOSS Intranet master page

I have started building up our Accessible moss portal master page borrowing the same methods applied to the AKS master pages. These include labeling tables as layout tables and using the wss search control. I have added in my own labels for the scopes drop down and search input box as this is required to comply with accessibility standards. Doing this I have managed to narrow the accessibility errors down to 2 for the portal home page which is pretty good. I am using WAVE to test the accessibility. The errors I am getting are for missing "alt" text for some blank.gif images. I tried to find them but they are in SharePoint controls that I can't modify. The 2 errors is 1 lower than the amount for the AKS master pages.

I also converted the DOC TYPE to “loose” instead of running in quirks mode. What happens when you do this to the default master page? Well the height="100%" for tables, cells and rows will no longer work so you are left with a portal that does not extend the full height of your browser. You can work around this however if you set some background images to repeat vertically. This will give the impression that your site fits the height of the browser. It can also be achieved for fixed width or liquid layout sites.