how can we make a back link? Like when someone click on the word 'Back" and it will take them to the last page they've visited. ANd also what's the code for the forward link? Thanks

One more thing. Can we block someone from our site? I know the IP.

<a href="javascript:history.go(-1)">Back</a>

<a href="javascript:history.go(+1)">Forward</a>