Home button when home

This is a small fix that prevents the home button from showing up on the front page.
Goes into page.tpl.php

<div id="leftnav"><?php if (!$is_front): ?>
      <a href="<?php print base_path(); ?>"><img alt="home" src="<?php print base_path() . path_to_theme() ?>/images/home.png" /></a>
      <?php endif; ?></div>