Простой botstrap 3 шаблон постраничной навигации (system.pagenavigation)

<?
   if(!defined("B_PROLOG_INCLUDED") || B_PROLOG_INCLUDED!==true)die();
   if(!$arResult["NavShowAlways"]){
      if ($arResult["NavRecordCount"] == 0 || ($arResult["NavPageCount"] == 1 && $arResult["NavShowAll"] == false)) return;
   }
   $strNavQueryString = ($arResult["NavQueryString"] != "" ? $arResult["NavQueryString"]."&" : "");
   $strNavQueryStringFull = ($arResult["NavQueryString"] != "" ? "?".$arResult["NavQueryString"] : "");
?>


<nav>
   <ul class="pagination">
      <?if($arResult["bDescPageNumbering"] === true):?>
         <?if ($arResult["NavPageNomer"] < $arResult["NavPageCount"]):?>
            <?if($arResult["bSavePage"]):?>
               <li><a href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>PAGEN_<?=$arResult["NavNum"]?>=<?=($arResult["NavPageNomer"]+1)?>"><?=GetMessage("nav_prev")?></a></li>
            <?else:?>
               <?if ($arResult["NavPageCount"] == ($arResult["NavPageNomer"]+1)):?>
                  <li><a href="<?=$arResult["sUrlPath"]?><?=$strNavQueryStringFull?>"><?=GetMessage("nav_prev")?></a></li>
               <?else:?>
                  <li><a href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>PAGEN_<?=$arResult["NavNum"]?>=<?=($arResult["NavPageNomer"]+1)?>"><?=GetMessage("nav_prev")?></a></li>
               <?endif?>
            <?endif?>
      
            <?if ($arResult["nStartPage"] < $arResult["NavPageCount"]):?>
               <?if($arResult["bSavePage"]):?>
                  <li><a href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>PAGEN_<?=$arResult["NavNum"]?>=<?=$arResult["NavPageCount"]?>">1</a></li>
               <?else:?>
                  <li><a href="<?=$arResult["sUrlPath"]?><?=$strNavQueryStringFull?>">1</a></li>
               <?endif?>
               <?if($arResult["nStartPage"] < ($arResult["NavPageCount"] - 1)):?>
                  <li>...</li>
                  <li><a href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>PAGEN_<?=$arResult["NavNum"]?>=<?=intVal($arResult["nStartPage"] + ($arResult["NavPageCount"] - $arResult["nStartPage"]) / 2)?>">...</a></li>
               <?endif?>
            <?endif?>
         <?endif?>
         <?do{$NavRecordGroupPrint = $arResult["NavPageCount"] - $arResult["nStartPage"] + 1;?>
            <?if ($arResult["nStartPage"] == $arResult["NavPageNomer"]):?>
               <li class="active"><span><?=$NavRecordGroupPrint?></span></li>
            <?elseif($arResult["nStartPage"] == $arResult["NavPageCount"] && $arResult["bSavePage"] == false):?>
               <li><a href="<?=$arResult["sUrlPath"]?><?=$strNavQueryStringFull?>"><?=$NavRecordGroupPrint?></a></li>
            <?else:?>
               <li><a href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>PAGEN_<?=$arResult["NavNum"]?>=<?=$arResult["nStartPage"]?>"><?=$NavRecordGroupPrint?></a></li>
            <?endif?>
            <?$arResult["nStartPage"]--;?>
         <?} while($arResult["nStartPage"] >= $arResult["nEndPage"]);?>
         <?if ($arResult["NavPageNomer"] > 1):?>
            <?if ($arResult["nEndPage"] > 1):?>
               <?if ($arResult["nEndPage"] > 2):?>
                  <li><a href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>PAGEN_<?=$arResult["NavNum"]?>=<?=round($arResult["nEndPage"] / 2)?>">...</a></li>
               <?endif?>
               <li><a href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>PAGEN_<?=$arResult["NavNum"]?>=1"><?=$arResult["NavPageCount"]?></a></li>
            <?endif?>
            <li><a href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>PAGEN_<?=$arResult["NavNum"]?>=<?=($arResult["NavPageNomer"]-1)?>"><?=GetMessage("nav_next")?></a></li>
         <?endif?>
      <?else:?>
         <?if ($arResult["NavPageNomer"] > 1):?>
            <?if($arResult["bSavePage"]):?>
               <li><a href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>PAGEN_<?=$arResult["NavNum"]?>=<?=($arResult["NavPageNomer"]-1)?>"><?=GetMessage("nav_prev")?></a></li>
            <?else:?>
               <?if ($arResult["NavPageNomer"] > 2):?>
                  <li><a href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>PAGEN_<?=$arResult["NavNum"]?>=<?=($arResult["NavPageNomer"]-1)?>"><?=GetMessage("nav_prev")?></a></li>
               <?else:?>
                  <li><a href="<?=$arResult["sUrlPath"]?><?=$strNavQueryStringFull?>"><?=GetMessage("nav_prev")?></a></li>
               <?endif?>
            <?endif?>
            <?if ($arResult["nStartPage"] > 1):?>
               <?if($arResult["bSavePage"]):?>
                  <li><a href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>PAGEN_<?=$arResult["NavNum"]?>=1">1</a></li>
               <?else:?>
                  <li><a href="<?=$arResult["sUrlPath"]?><?=$strNavQueryStringFull?>">1</a></li>
               <?endif?>
               <?if ($arResult["nStartPage"] > 2):?>
                  <li><a href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>PAGEN_<?=$arResult["NavNum"]?>=<?=round($arResult["nStartPage"] / 2)?>">...</a></li>
               <?endif?>
            <?endif?>
         <?endif?>
         <?do{?>
            <?if ($arResult["nStartPage"] == $arResult["NavPageNomer"]):?>
               <li class="active"><span><?=$arResult["nStartPage"]?></span></li>
            <?elseif($arResult["nStartPage"] == 1 && $arResult["bSavePage"] == false):?>
               <li><a href="<?=$arResult["sUrlPath"]?><?=$strNavQueryStringFull?>"><?=$arResult["nStartPage"]?></a></li>
            <?else:?>
               <li><a href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>PAGEN_<?=$arResult["NavNum"]?>=<?=$arResult["nStartPage"]?>"><?=$arResult["nStartPage"]?></a></li>
            <?endif?>
            <?
               $arResult["nStartPage"]++;
            ?>
         <?} while($arResult["nStartPage"] <= $arResult["nEndPage"]);?>
         <?if($arResult["NavPageNomer"] < $arResult["NavPageCount"]):?>
            <?if ($arResult["nEndPage"] < $arResult["NavPageCount"]):?>
               <?if ($arResult["nEndPage"] < ($arResult["NavPageCount"] - 1)):?>
                  <li><a href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>PAGEN_<?=$arResult["NavNum"]?>=<?=round($arResult["nEndPage"] + ($arResult["NavPageCount"] - $arResult["nEndPage"]) / 2)?>">...</a></li>
               <?endif?>
               <li><a href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>PAGEN_<?=$arResult["NavNum"]?>=<?=$arResult["NavPageCount"]?>"><?=$arResult["NavPageCount"]?></a></li>
            <?endif?>
            <li><a class="modern-page-next" href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>PAGEN_<?=$arResult["NavNum"]?>=<?=($arResult["NavPageNomer"]+1)?>"><?=GetMessage("nav_next")?></a></li>
         <?endif?>
      <?endif?>
      <?if ($arResult["bShowAll"]):?>
         <?if ($arResult["NavShowAll"]):?>
            <li><a class="modern-page-pagen" href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>SHOWALL_<?=$arResult["NavNum"]?>=0"><?=GetMessage("nav_paged")?></a></li>
         <?else:?>
            <li><a class="modern-page-all" href="<?=$arResult["sUrlPath"]?>?<?=$strNavQueryString?>SHOWALL_<?=$arResult["NavNum"]?>=1"><?=GetMessage("nav_all")?></a></li>
         <?endif?>
      <?endif?>
   </ul>
</nav>