<!--Very easy way to get show the current page you're on including the homepage in Wordpress-->
<ul id="nav_bar">
		<li <?php if($_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"] == 'someurl.com/') {echo 'class="current_page_item"';}?>><a href="/" >Home</a></li>
		<?php wp_list_pages('title_li='); ?>
</ul>