[Miha]

<?if (!defined("B_PROLOG_INCLUDED") || B_PROLOG_INCLUDED!==true)die();?>
<?
//echo '<pre>'; print_r($arResult); echo '</pre>';
if (count($arResult) < 1)
return;

$bManyIblock = array_key_exists("IBLOCK_ROOT_ITEM", $arResult[0]["PARAMS"]);
//$bNameIblock = $arResult[0]["TEXT"];
//print_r($bManyIblock);
//print_r($bNameIblock);
?>

<ul id="left-menu">

<?
$previousLevel = 0;

foreach($arResult as $key => $arItem){
//print_r ($arItem);

if ($previousLevel && $arItem["DEPTH_LEVEL"] < $previousLevel){

echo str_repeat("</ul></li>", ($previousLevel - $arItem["DEPTH_LEVEL"]));
}


if ($arItem["IS_PARENT"]):
$i = $key;
$bHasSelected = $arItem['SELECTED'];
$childSelected = false;
if (!$bHasSelected)
{
while ($arResult[++$i]['DEPTH_LEVEL'] > $arItem['DEPTH_LEVEL'])
{
if ($arResult[$i]['SELECTED'])
{
$bHasSelected = $childSelected = true; break;
}
}
}

$className = $nHasSelected ? 'selected' : '';//($bHasSelected ? 'selected' : '');
?>
<? if ($arItem['DEPTH_LEVEL'] > 1 && !$childSelected && $bHasSelected):?>
<li class="current">
<a class="selected" href="<?=$arItem["LINK"]?>"><?=$arItem["TEXT"]?></a>
<ul>

<? else:?>
<li<?=$bHasSelected ? ' class="selected"' : ''?>>
<a<?=$bHasSelected ? ' class="selected"' : ''?> href="<?=$arItem["LINK"]?>"><?=$arItem["TEXT"]?></a>
<ul<?=$bHasSelected || ($bManyIblock && $arItem['DEPTH_LEVEL'] <= 1) ? '' : ' style="display: none;"'?>>
<? endif?>


<?
else:
if ($arItem["PERMISSION"] > "D"):
$className = $arItem['SELECTED'] ? $arItem['DEPTH_LEVEL'] > 1 ? 'current' : "selected" : '';
?>
<li<?=$className ? ' class="'.$className.'"' : ''?>>

<a<?if ($arItem['SELECTED']):?> class="selected"<?endif?> href="<?=$arItem["LINK"]?>"><?=$arItem["TEXT"]?></a>

</li>
<?
endif;
endif;

$previousLevel = $arItem["DEPTH_LEVEL"];
}

if ($previousLevel > 1)://close last item tags
echo str_repeat("</ul></li>", ($previousLevel-1) );
endif;
?>
</ul>



Вот код пхп согласно которому формируется меню.