Add "active" class to topmenu, magento 1.9 - magento

Question

I need to add active class to my topmenu. And i already saw a bunch of subjects on forums, but i didn't saw code like i have. Can you please hepl me. I tried to "echo $currentUrl" but this what i saw " localhost.com/app/etc/local.xml "
<?php $_menu = $this->getHtml('level-top') ?>
<?php if($_menu): ?>
<?php
$currentUrl = Mage::helper('core/url')->getCurrentUrl();
$baseUrl = Mage::getBaseUrl();
$locale = Mage::app()->getLocale()->getLocaleCode();
$_topMenuItems['ru_RU'] = array(
/*$this->__('Home') => $baseUrl,*/
$this->__('IIW, Delivery and payment') => $baseUrl . 'dostavka-oplata.html',
$this->__('IIW, About us') => $baseUrl . 'pro-nas-kategorija.html',
$this->__('IIW, Partners') => $baseUrl . 'partneram.html',
$this->__('IIW, Contacts') => $baseUrl . 'contacts',
$this->__('IIW, It is interesting') => $baseUrl . 'korisna-informacija.html',
/* $this->__('IIW, Where to buy') => $baseUrl . 'de-prudbatu.html', */
);
?>
<nav id="nav">
<ol class="nav-primary">
<?php
$i = 0;
$length = count($_topMenuItems[$locale]);
foreach ($_topMenuItems[$locale] as $label => $_itemUrl) {
if ($i == 0) {
echo $_menu;
}
$customMenuClass = ' cm-' . ($i + 1);
if ($i == 0) {
$customMenuClass .= ' first';
} elseif ($i == ($length - 1)) {
$customMenuClass .= ' last';
}
if (trim($currentUrl, '/') == trim($_itemUrl, '/')) {
$customMenuClass .= ' active';
}
?>
<li class="level0<?php echo $customMenuClass ?>">
<?php echo $label ?>
</li>
<?php
$i++;
}
?>
</ol>
</nav>

Answer 1

<script>
jQuery(document).ready(function($){
var locationUrl = location.href;
$(".yourmenu a.yourclass").each(function() {
var menuLinkHref = $(this).attr("href");
if (~locationUrl.indexOf(menuLinkHref)) {
$(this).addClass("active");
}
});
});
</script>
JS solution if you need
.yourmenu - class of the menu, where your links must change class .actve;
.yourclass - class allready used for each link in the menu (ex.".menu_item_link").