In Chapter 2, we had mentioned that the reversed attribute is not supported in Internet Explorer 10 and earlier. The reasoning behind this is that as of the date of publication, the reversed attribute was not far enough along with the W3C for the IE team to include it.

I was speaking with Jonathan Sampson about this and he had wrote a blog post about writing an IE polyfill to solve this problem in IE10 and other browsers that do not support it. You can get this polyfill at http://sampsonblog.com/532/polyfill-...ibute-on-lists.

Jonathan explains what a polyfill is much better than I could at another blog post that can be found at http://sampsonblog.com/489/creating-...focus-polyfill.