Whats the javascript command for going back and forth using a text link?. This is to go in a php document.

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

<a href="javascript:history.go(2)">Forward two pages</a>

Or, also...

<a href="javascript:history.back()">Back</a>
<a href="javascript:history.forward()">Forward</a>