focus - JQuery focus on tab pressed

Question

Hi I am trying to make an input field focused when tab is pressed on another input field, but it's not working, anyone can tell me why?

Here is the code I'm using:

http://jsfiddle.net/kk4GN/4/

Answer 1

利用event.preventDefault();

更新——http ://jsfiddle.net/kk4GN/7/