How do I change the ID of a HTML element with JavaScript?

Question

I am modifying the ID of an HTML div element client side with JavaScript. The following code works OK in Internet Explorer but not in Firefox/2.0.0.20. It does

Answer 1

You can modify the id without having to use getElementById

Example:

One

You can see it here: http://jsbin.com/elikaj/1/

Tested with Mozilla Firefox 22 and Google Chrome 60.0