What is the simplest way to create an <a> tag that links to the previous web page? Basically a simulated back button, but an actual hyperlink. Client-side technologies only, please.
Edit
Looking for solutions that have the benefit of showing the URL of the page you're about to click on when hovering, like a normal, static hyperlink. I'd rather not have the user looking at history.go(-1) when hovering on a hyperlink. Best I've found so far is:
<script>
document.write('<a href="' + document.referrer + '">Go Back</a>');
</script>
Is document.referrer reliable? Cross-browser safe? I'll be happy to accept a better answer.