$(function(){
    var window_h = $(window).height();
        $(window).scroll(function (){
            $('.fadein').each(function(){
                var elemPos = $(this).offset().top;
                var scroll = $(window).scrollTop();
                var windowHeight = $(window).height();
                if (scroll > elemPos - windowHeight + 200){
                    $(this).addClass('scrollin');
                }
            });
        });
        $(window).scroll(function (){
            $('.slidein_right').each(function(){
                var elemPos = $(this).offset().top;
                var scroll = $(window).scrollTop();
                var windowHeight = $(window).height();
                if (scroll > elemPos - windowHeight + 200){
                    $(this).addClass('scrollin_2');
                }
            });
        });
        $(window).scroll(function (){
            $('.slidein_left').each(function(){
                var elemPos = $(this).offset().top;
                var scroll = $(window).scrollTop();
                var windowHeight = $(window).height();
                if (scroll > elemPos - windowHeight + 200){
                    $(this).addClass('scrollin_3');
                }
            });
        });
        $(window).scroll(function(){
            $('.marker-animation').each(function(){
            var targetP=$(this).offset().top;
            var scrollT=$(window).scrollTop();
            var windowH=$(window).height();if(scrollT>targetP-windowH+250){
                $(this).addClass('marker-animation-position');
            }
        });
    });
    });