I'm working on this A-Z example with scrolling:

A-Z index with Scrolling function

It works fine. Now I just need to achieve that each time I click on one of the alphabets, the focus changes to the targeted h1 alphabet.

To achieve this I added the following two lines to the code:

1. target.addClass('focus');
2. target.focus();

But it still doesn't change the focus to the targeted alphabet.

How can I change the focus after each click?

Thanks