Активная кнопка, и вывод текста при перезаключении фильтра

<?if(!defined("B_PROLOG_INCLUDED") || B_PROLOG_INCLUDED!==true)die();
/** @var array $arParams */
/** @var array $arResult */
/** @global CMain $APPLICATION */
/** @global CUser $USER */
/** @global CDatabase $DB */
/** @var CBitrixComponentTemplate $this */
/** @var string $templateName */
/** @var string $templateFile */
/** @var string $templateFolder */
/** @var string $componentPath */
/** @var CBitrixComponent $component */
$this->setFrameMode(true);?>
<?if($arResult["SECTIONS_COUNT"] > 0 && !empty($arResult['~SECTIONS'])):?>
    <div class="filter-block">
         <button data-filter="*" class="filter-item"><?=GetMessage("CT_BCSL_ELEMENT_PROGRAMM_POKAZAT_VSE")?></button>
        <?foreach ($arResult['SECTIONS'] as $cell=>$arSection):?>
            <?//if($arSection["ELEMENT_CNT"] > 0 && $arResult['~SECTIONS'][$arSection["ID"]] > 0):?>
                <button data-filter=".section-number-<?=$arSection["ID"]?>" class="filter-item"><?=$arSection["NAME"]?></button>
            <?//endif?>
        <?endforeach?>
    </div>
<?endif?>

<button data-filter="*" class="filter-item"><?=GetMessage("CT_BCSL_ELEMENT_PROGRAMM_POKAZAT_VSE")?></button>