<h2>Me &amp; My Shadow</h2>

Then the tab control displayed “&” instead of a single ampersand character.

It looks like this occurs because the JavaScript DOM function document.createTextNode() does not convert entities. However, it looks like innerHTML does convert entities, so to fix your problem find the following line in tabber.js:

DOM_a.appendChild(document.createTextNode(t.headingText));

and replace with the following:

DOM_a.innerHTML = t.headingText;

I’ll think about this some more and if I can’t find any bad side effects I’ll add to the tabber code.

Now with yummy cookies!

I added an example page showing how you can use the new onLoad and onClick function hooks in my JavaScript tabifier to make the tabs persistent (using browser cookies).

That is, if you leave the page and come back later, the tab you previously selected will still be selected.