The script shown below occurs in the body of this HTML document, below the HTML used to create these phrases. It should cause an alert window to open and then, after the user clicks the OK button, load the last page visited before this one. The actual code has been "commented out" so that it doesn't work. You should view the source of this document. Delete the comment markers around the JavaScript commands. Save a copy, and then load the saved copy into a browser (that has "gone" several other places first, if you want to see what history.go(-1) does), to see the script in action.

<script type="text/javascript" language="JavaScript">
    alert("Prepare to go back a page!")
    history.go(-1)
</script>