DHTML Accessibility
•W3C, IBM and Mozilla are working together to build it into Firefox
•Provides accessibility of desktop-style widgets such as tree views, menu bars and spreadsheets which are accessible both with the keyboard and AAT
–1.  Keyboard navigation - Extension to html tabindex
•let's any element be  tab-indexable or focusable
•e.g. tree views with arrow navigation
–2.  Assistive technology support with mark-up that uses namespaced attributes to describe widgets
•e.g. tabindex, role, properties – all exposed to AT
<span tabindex="0" xhtml2:role="wairole:checkbox"
      property:checked="true"
      onkeydown="return checkBoxEvent(event);"
      onclick="return checkBoxEvent(event);">
  Any checkbox label
</span>
•Currently only supported in Firefox 1.5 and above