Edit in JSFiddle

(function(win){
    var time, polyfill;
    timer = null;
    polyfill = function(callback){
        clearTimeout(timer);
        setTimeout(callback, 1000 / 60);
    };
    win.requestAnimationFrame = win.requestAnimationFrame
    || win.mozRequestAnimationFrame
    || win.webkitRequestAnimationFrame
    || polyfill;
}(window));

(function($){
    $.easing.linear = function(x, t, b, c, d){
        if(x !== null){ return x; }
        return b + ((c - b) * (t / d));
    };
}(jQuery));

(function(){
    var nodes, leftFrom, leftTo, scrollStart, scrollEnd, step;
    
    nodes = {
        "linear": $(".box.linear"),
        "swing": $(".box.swing"),
        "easeOutBounce": $(".box.bounce"),
        "easeOutBack": $(".box.back")
    };
    
    leftFrom = 10;
    leftTo = 400;
    scrollStart = 500;
    scrollEnd = 1000;
    
    step = function(){
        var scroll = $(window).scrollTop();
        $.each(nodes, function(name, node){
            var progress;
            if(scroll < scrollStart){
                return node.css("left", leftFrom);
            }
            if(scroll > scrollEnd){
                return node.css("left", leftTo);
            }
            progress = $.easing[name](null, scroll - scrollStart, 0, 1, scrollEnd - scrollStart);
            node.css("left", 
                     leftFrom + (leftTo - leftFrom) * progress
                    );
        });
        requestAnimationFrame(step);
    };
    
    step();
}());

<div class="container">
    <div class="box linear">Linear</div>
    <div class="box swing">Swing</div>
    <div class="box bounce">Bounce</div>
    <div class="box back">Back</div>
</div>

body {
    height: 2000px;
}

p {
    text-align: center;
}

.box {
    position: fixed;
    font-size: 13px;
    width: 60px;
    height: 60px;
    text-align: center;
    line-height: 60px;
    color: #fff;
}

.box.linear {
    top: 10px;
    background-color: #690;
}

.box.swing {
    top: 80px;
    background-color: #069;
}

.box.bounce {
    top: 150px;
    background-color: #906;
}

.box.back {
    top: 220px;
    background-color: #609;
}