Как фильтровать два свойства каталога в одном INPUT'E?

<form name="<?echo $arResult["FILTER_NAME"]."_form"?>" action="/test/filter.php" method="get">



   <?foreach($arResult["ITEMS"] as $arItem):
      if(array_key_exists("HIDDEN", $arItem)):
         echo $arItem["INPUT"];
      endif;
   endforeach;?>
   <table class="itp-tbl4">
   <thead>
      <tr>
         <td colspan="2"><b>Поиск</b></td>
      </tr>
   </thead>
   <tbody>
      <?foreach($arResult["ITEMS"] as $arItem):?>
         <?if(!array_key_exists("HIDDEN", $arItem)):?>
            <tr>
               <td valign="top"><?=$arItem["NAME"]?>:</td>
               <td valign="top"><?=$arItem["INPUT"]?></td>
                     <?endif?>
      <?endforeach;?>

            </tr>
            
            <tr><td colspan="2">
            <div align="center">
            <input type="submit" class="button_price blue" name="set_filter" value="<?=GetMessage("IBLOCK_SET_FILTER")?>" />
            <input type="hidden" name="set_filter" value="Y" />
            <input type="submit" class="button_price blue" name="del_filter" value="<?=GetMessage("IBLOCK_DEL_FILTER")?>" /></div></td></tr>
   
   </tbody>

   </table>
</form>