<?$counter = 0;?>
	<?foreach($arResult["ITEMS"] as $arItem):?>
	
	 <?if($counter >= 5){break;}?>
	<h1><?=$arItem["NAME"]?></h1>
	 <?$counter++?>
	<?endforeach;?> 
  
  'SORT_BY1' => 'RAND',
'SORT_ORDER1' => 'RAND',
'NEWS_COUNT' => 5,<?$counter = 0;
$ar_keys = range(0, count($arResult["ITEMS"])-1);
shuffle($ar_keys);?>
<?foreach($ar_keys as $key):?>
  <?if($counter >= 5){break;}?>
  <h1><?=$arResult["ITEMS"][$key]["NAME"]?></h1>
  <?$counter++?>
<?endforeach;?>