<?php
/**
* @version $Id: default.php 20983 2011-03-17 16:19:45Z chdemko $
* @package Joomla.Site
* @subpackage mod_menu
* @copyright Copyright (C) 2005 - 2011 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
// No direct access.
// No direct access.
defined('_JEXEC') or die;
//get the last item of the level 1 menu
$last_level_one_id = 0;
for($j=count($list)-1; $j>0; $j--){
if($list[$j]->level == 1){
$last_level_one_id = $list[$j]->id;
break;
}
}
$first_start = true;//using for the first of the level 1 menu and the submenu
?>
<ul class="menu<?php echo $class_sfx;?>"<?php
$tag = '';
if ($params->get('tag_id')!=NULL) {
$tag = $params->get('tag_id').'';
echo ' id="'.$tag.'"';
}
?>>
<?php
foreach ($list as $i => &$item) :
$id = '';
if ($item->id == $active_id) {
$id = ' id="current"';
}
if ( $item->type == 'alias' &&
in_array($item->params->get('aliasoptions'),$path)
|| in_array($item->id, $path)) {
$class .= 'selected ';
}
$currentitemcount ++;
if ($item->shallower or $currentitemcount == count($list)) {
$class .= 'last ';
}
if ($lastdeeper or $currentitemcount == 1) {
$class .= 'first ';
}
if ($item->deeper) {
$class .= 'deeper ';
$lastdeeper = true;
} else {
$lastdeeper = false;
}
if ($item->parent) {
$class .= 'parent ';
}
///start hack
if($first_start){
$class .= ' first';
$first_start = false;
}else if ($item->shallower || $item->id == $last_level_one_id ) {
$class .= ' last';
}
if ($item->deeper) {
$class .= ' deeper';
$first_start = true;
}
///end hack
if ($item->level) {
$class .= ' level-' . $item->level;
}
if (!empty($class)) {
$class = ' class="item-'.$item->id.' '.$class.'"';
}
echo '<li'.$id.$class.'>';
// Render the menu item.
switch ($item->type) :
case 'separator':
case 'url':
case 'component':
require JModuleHelper::getLayoutPath('mod_menu', 'default_'.$item->type);
break;
default:
require JModuleHelper::getLayoutPath('mod_menu', 'default_url');
break;
endswitch;
// The next item is deeper.
if ($item->deeper) {
echo '<ul class="deeper level-'. ++$item->level.'">';
}
// The next item is shallower.
else if ($item->shallower) {
echo '</li>';
echo str_repeat('</ul></li>', $item->level_diff);
}
else if ($item->shallower or $currentitemcount == count($list)) {
$class .= 'last ';
}
// The next item is on the same level.
else {
echo '</li>';
}
endforeach;
?></ul>
Again this is not working for me and seems to be duplicating the 'last' and 'first' classes. again on parent list items that have un-order lists you code does not seem to had a 'last' class to these specific elements.
do you see any errors in the code.
) The reason: the value of $item->level_diff = 2 when Level3_2 item is on the output. 
. If it still goes wrong, show me the default.php file you have just modified.
