Magento – Add “active” class to top link
Simply change link in this way:
<li class="<?php if (Mage::helper('core/url')->getCurrentUrl() === Mage::helper('core/url')->getHomeUrl().'faq/'):?> active<?php endif;?>"> <a href="<?php echo $this->getUrl('faq/')?>"><?php echo $this->__('FAQ') ?></a> </li>