Improving Ajax Applications for JAWS users
Popular screen readers use a virtual buffer to allow users to interact with web content, whereby the virtual buffer provides a mechanism for screen reader users to interact with web content. This article uncovers undocumented behaviour in JAWS 7.1 and later, which allows web developers to build Ajax applications that update the virtual buffer without any interaction from the user.
Lemon, Gez and Steve Faulkner. Juicy Studio (2007). Resources>Accessibility>Ajax