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array(
    "CONDITION" => "#^/cases/(.+?)/.*#",
    "RULE"      => "ELEMENT_CODE=$1", 
     "PATH"     => "/cases/detail.php",
),

Detail page url in infoblock settings:
#SITE_DIR#/cases/#ELEMENT_CODE#/

bitrix:news.detail parameter:

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$photo_src = CFile::GetPath(IMAGE_ID);

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<div class="case_pagination">

					<?
					$arSelect = Array("ID","NAME", "DETAIL_PAGE_URL");
					$arFilter = Array("IBLOCK_ID"=>$arResult["IBLOCK_ID"], "ACTIVE_DATE"=>"Y", "ACTIVE"=>"Y", "SECTION_ID"=>$arResult['IBLOCK_SECTION_ID']);
					$res = CIBlockElement::GetList(Array("active_from"=>"ASC"), $arFilter, false, Array("nPageSize"=>1,"nElementID"=>$arResult['ID']), $arSelect);
					while($ob = $res->GetNext()){
						$links[]=$ob;
					}
					

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require($_SERVER["DOCUMENT_ROOT"]."/bitrix/modules/main/include/prolog_before.php");
CModule::IncludeModule("iblock");

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$numItems = count($arr);
$i = 0;
foreach($arr as $key=>$value) {
  if(++$i === $numItems) {
    echo "last index!";
  }
}

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$app = JFactory::getApplication();
$menu = $app->getMenu();
if ($menu->getActive() == $menu->getDefault()) {
	echo 'This is the front page';
}

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function isValidEmailAddress(emailAddress) {
    var pattern = new RegExp(/^(("[\w-\s]+")|([\w-]+(?:\.[\w-]+)*)|("[\w-\s]+")([\w-]+(?:\.[\w-]+)*))(@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$)|(@\[?((25[0-5]\.|2[0-4][0-9]\.|1[0-9]{2}\.|[0-9]{1,2}\.))((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\.){2}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\]?$)/i);
    return pattern.test(emailAddress);
}

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echo "<pre>";
  print_r($this->_item->getRelatedCategories(true));
echo "</pre>";

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function getURLParameter(name) {
  return decodeURIComponent((new RegExp('[?|&]' + name + '=' + '([^&;]+?)(&|#|;|$)').exec(location.search) || [null, ''])[1].replace(/\+/g, '%20')) || null;
}

myvar = getURLParameter('myvar');

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var sections = $('.content section')
  , nav = $('.header-top')
  , nav_height = nav.outerHeight();

	$(window).on('scroll', function () {
		
		
		
	  var cur_pos = $(this).scrollTop();