javascript window offscreenBuffering

Indicates whether the browser should use offscreen buffering to improve path animation performance. Although the property is implemented in IE 5 for Macintosh, it is unclear that it offers any functionality. Recent versions of IE for Windows connect this property to the DirectX ActiveX control. When the document loads, the property is set to auto. After that, a script may turn buffering on and off by assigning a Boolean value to this property.