var setPalcikaWidth = function(){
	activeMenuWidth = $(".inwb_services_menu_cont").find("a.active").innerWidth();
	$(".inwb_services_menu_cont").find(".inwb_services_tabPalca").css("width", activeMenuWidth);
}
var setPalcikaPos = function(){
	activeMenuPos = $(".inwb_services_menu_cont").find("a.active").position().left;
	$(".inwb_services_menu_cont").find(".inwb_services_tabPalca").css("left", activeMenuPos);
}

$(document).ready(function () {

	$(window).on('load', function() {
		setPalcikaWidth();
		setPalcikaPos();
	});
	
	$(window).resize(function () {
		setPalcikaWidth();
		setPalcikaPos();
	});
	
	$(window).scroll(function () {
		eT = $("#inwb_services_cont").offset().top;
		eH = $("#inwb_services_cont").height();
		sT = $(document).scrollTop();
		wH = $(window).height();
		disableAutoTabbing = $("#inwb_services_cont").hasClass("disableAutoTabbing");

		from = eT - (wH - eH);
		to = (eT + wH - eH);

		if (sT >= from && sT <= to) {
			diff = to - from;
			step = (diff / 3);
			currentStep = Math.round((sT - from) / step);
			if (currentStep == 3) currentStep = 2;
			domStep = (currentStep + 1);
			if (!disableAutoTabbing){
				tabIndex = "tab0"+domStep;
				if (!$("#inwb_services_cont .inwb_services_menu_cont a[data-tab-index='" + tabIndex + "']").hasClass("active")){
					$("#inwb_services_cont .inwb_services_menu_cont a").each(function() {
						$(this).removeClass("active");
					});
					$("#inwb_services_cont .inwb_services_menu_cont a[data-tab-index='" + tabIndex + "']").addClass("active");
					$( "#inwb_services_cont .inwb_services_tab_main_cont.active" ).fadeOut( 0, function() {
						$(this).removeClass("active");
						setPalcikaWidth();
						setPalcikaPos();
						$("#inwb_services_cont .inwb_services_tab_main_cont[data-tab-index='" + tabIndex + "']").fadeIn( 0, function() {
							$(this).addClass("active");
						});
					});
				}
			}
		}

		if (!disableAutoTabbing) {
			/*var parallaxElement = $("#inwb_services_cont_parallax_div"),
			parallaxQuantity = parallaxElement.length;
			window.requestAnimationFrame(function() {
				for (var i = 0; i < parallaxQuantity; i++) {
					var currentElement = parallaxElement.eq(i),
					windowTop = $(window).scrollTop(),
					elementTop = currentElement.offset().top,
					elementHeight = currentElement.height(),
					viewPortHeight = window.innerHeight * 0.5 - elementHeight * 0.5,
					scrolled = windowTop - elementTop + viewPortHeight;
					currentElement.css({
						transform: "translate3d(0," + scrolled * -0.15 + "px, 0)"
					});
				}
			});*/
		}

	});
	
	$("#inwb_services_cont .inwb_services_menu_cont a").on("click", function(){
		tabIndex = $(this).data("tabIndex");
		$("#inwb_services_cont .inwb_services_menu_cont a").each(function() {
			$(this).removeClass("active");
		});
		$(this).addClass("active");
		$( "#inwb_services_cont .inwb_services_tab_main_cont.active" ).fadeOut( 0, function() {
			$(this).removeClass("active");
			setPalcikaWidth();
			setPalcikaPos();
			$("#inwb_services_cont .inwb_services_tab_main_cont[data-tab-index='" + tabIndex + "']").fadeIn( 0, function() {
				$(this).addClass("active");
				$("#inwb_services_cont").addClass("disableAutoTabbing");
			});
		});
	});
	
		
});