How to? make a button that goes "back" twice?

Button

[StevenK]

I need to make a button that goes "<back" twice so I can get back to some search listings generated by php. Any ideas?

[Jumper Willow]

if could look something like this...

<form name="form1" action="javascript:history.go(-2);" method="post">
<input type="submit" value="Go Back Two">

It'll be a button, the actual javascript is just history.go(-2)