fade on scroll 2!

by lovromar

HTML

<div id="box1"></div>
<div id="box2"></div>
<div id="box3"></div>
<div id="box4"></div>
<div id="box5"></div>
<div id="box6"></div>

CSS

#box1, #box2, #box3, #box4, #box5, #box6 {
    width: 100px;
    height: 100px;
    background: orange;
    margin:100px auto;
}
#box6 {
    margin-bottom:600px;
}

JavaScript

$(window).scroll(function () {
    $('[id^="box"]').each(function () {
        if (($(this).offset().top - $(window).scrollTop()) < 20) {
            $(this).stop().fadeTo(100, 0);
        } else {
            $(this).stop().fadeTo('fast', 1);
        }
    });
});