back two times at once

[joonstar]

<a href='javascript:history.back()'> back</a>

Above code make the page backward.

I like to make it back 2 page.
So, I made next code that doesn't work.

<a href='javascript:history.back(-2)'> back2</a>

Would you make it work?

[Catman]

Try this:

<a href='javascript:history.go(-2)'> back2</a>

[zoobie]

Try:
<a href='javascript:history.go(-2)'> back2</a>

[redhead]

or history.back(2) which is what history.back is for, going backwards ;)