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<?php
$page = $_SERVER['SCRIPT_NAME'];
switch (1)
{
	case strpos($page, "biography"):
	$biography =' class="active"';break;
	
	case strpos($page, "portfolio"):
	$portfolio =' class="active"';break;

	case strpos($page, "exhibitions"):
	$exhibitions =' class="active"';break;
	
	case strpos($page, "contact"):
	$contact =' class="active"';break;

	default:
	$home =' class="active"';break;
}		
?>
          <ul class="set">
            <li<?php echo $home; ?>><a href="/">Home</a></li>
            <li<?php echo $biography; ?>><a href="/biography/">Biography</a></li>
            <li<?php echo $portfolio; ?>><a href="/portfolio/">Portfolio</a></li>
            <li<?php echo $exhibitions; ?>><a href="/exhibitions/">Exhibitions</a></li>
            <li<?php echo $contact; ?>><a href="/contact/">Contacts</a></li>
          </ul>