nus/gist:835919

## gistfile1.html
<html>
    <head>
    <style type="text/css">
        #test {
        position: absolute;
        top: 0px;
        }
    </style>
    <script type="text/javascript">
        var tid;
        var count;
        var fps;
        onload = function() {
            fps = 10
            tid = setInterval("interval()", 1000 / fps);
            count = 0;
        }
        function interval() {
            count %= fps;
            var gain = 10;

            var id_test = document.getElementById("test");
            id_test.style.top = Math.abs(fps * gain / 2 - gain * count);
            count++;
        }
    </script>
    <title>js-css PoinPoin</title>
    <body>
        <p id="test">js-css PoinPoin</p>
    </body>
</html>
	<html>
	<head>
	<style type="text/css">
	#test {
	position: absolute;
	top: 0px;
	}
	</style>
	<script type="text/javascript">
	var tid;
	var count;
	var fps;
	onload = function() {
	fps = 10
	tid = setInterval("interval()", 1000 / fps);
	count = 0;
	}
	function interval() {
	count %= fps;
	var gain = 10;

	var id_test = document.getElementById("test");
	id_test.style.top = Math.abs(fps * gain / 2 - gain * count);
	count++;
	}
	</script>
	<title>js-css PoinPoin</title>
	<body>
	<p id="test">js-css PoinPoin</p>
	</body>
	</html>