That's easy. You only have to add the following to your HTML output:

<script type="text/javascript">
window.print();
</script>
[download]

Put it wherever on the page, maybe at the bottom before the </body> tag.
Not really Perl, though. I'm surprised you didn't find this while searching -- maybe you used the wrong keywords?

~Thomas~ 

"Excuse me for butting in, but I'm interrupt-driven..."