I am not sure that will work claus. The timer isn't fired unless you click the link, unless that is what you want stcrim? Just use the same code fired from what ever event you want. I would assume you would want it on the onload event like:
<body onLoad="goBack();">
With a the function goBack() in the code block:
<script> function goBack(){ setTimeout('history.go(-1)', 3000); } </script>