if(Drupal.jsEnabled) {
  $(document).ready(function(){
		addClasses();
    });
}

function addClasses(){
	menuElement = document.getElementById('block-menu-84');
	ulElement = menuElement.getElementsByTagName('ul')[0];
	liElements = ulElement.getElementsByTagName('li');

	if(liElements[0].getElementsByTagName('a')[0].className == "active")
		liElements[0].className += " active";

	for(var i = 1; i < liElements.length; i++) {
		if(liElements[i].getElementsByTagName('a')[0].className == "active") {
			liElements[i].className += " active";
			liElements[i-1].className += " prev-active";
		}
	}

	if(liElements[liElements.length-1].getElementsByTagName('a')[0].className == "active")
		liElements[liElements.length-1].className += " last-active";
	else
		liElements[liElements.length-1].className += " last";
}