Please note: Internet Explorer 8 only supports getters and setters on the DOM, it's prototypes (document, Element.prototype, etc.), and the window object. As long as you are setting an accessor on the window object, a DOM element, or a DOM prototype, Xccessors should work fine in every browser.
Xcessors Standard implements ECMAScript 5's (formerly 3.1)
Object.getOwnPropertyDescriptor in browsers that
support the legacy non-standard accessor methods. Everything behaves according to the
ECMAScript 5 standard except the configurable, enumerable, and writable options if set
false. It is impossible to implement these options without native support for
Object.defineProperty. The good news is that you are never going to use them if you
Xccessors Legacy implements the legacy accessor methods (
object.__lookup[GS]etter__) in browsers that support the standard
ECMAScript 5 accessor methods.