The Secret of Facebook

The act, the social networking site facebook.com, has a secret.
if you write the code, then the display will change to facebook like below.

Want to know how?

1. Login to facebook.com
2. Click into the white page
3. Pinch of this code. (up-up-down-down-left-right-left-right-b-a-enter)
4. you will get results ..
5. Does not appear?
6. please you scroll up or down with your mouse.
7. still can not?? Re-enter the code.
8. Still not appear? Maybe you're unlucky this time