(function($) {
	if($('.page-node-36').length > 0){

		if ( $("#block-views-birell-block").length > 0 ) {

			if($(".view-id-birell .view-content").length > 0){
				$('.views-row-1').attr('id','views-row-1');
			};

			if($(".view-id-birell .view-content").length > 0){
				$('.views-row-2').attr('id','views-row-2');
			};

			if($(".view-id-birell .view-content").length > 0){
				$('.views-row-3').attr('id','views-row-3');
			};

			if($(".view-id-birell .view-content").length > 0){
				$('.views-row-4').attr('id','views-row-4');
			};

			if($(".view-id-birell .view-content").length > 0){
				$('.views-row-5').attr('id','views-row-5');
			};

			if($(".view-id-birell .view-content").length > 0){
				$('.views-row-6').attr('id','views-row-6');
			};
		}

		$('a[href^="#"]').click(function(e){
			e.preventDefault();
			var target = this.hash;
			var $target = $(target);
			$('html, body').stop().animate({
				'scrollTop': $target.offset().top 
			}, 900, 'swing', function () {
				//window.location.hash = target;
			});
		});
		$('.about_nav li').eq(0).addClass("active");
		$('.about_nav a').click(function() {
			$('.about_nav li').removeClass();
			$(this).parent().addClass("active");  
		});

		var lastId,
			rightMenu = $(".about_nav"),
			rightMenuHeight= rightMenu.outerHeight(),
        
			menuItems = rightMenu.find("a"),
        
			scrollItems = menuItems.map(function(){
				var item = $($(this).attr("href"));
				if (item.length) { return item; }
			});

		$(window).scroll(function(){
         
			var fromTop = $(this).scrollTop()+rightMenuHeight;
         
			var current = scrollItems.map(function(){
				if ($(this).offset().top < fromTop)
				return this;
			});

			current = current[current.length-1];
			var id = current && current.length ? current[0].id : "";

			if (lastId !== id) {
				lastId = id;

				menuItems
					.parent().removeClass("active")
					.end().filter("[href='#"+id+"']").parent().addClass("active");
			}
		});
	}
})(jQuery);