<!DOCTYPE HTML>
<HTML>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title></title>
<style>
*{
margin:0;
padding:0;
}
#div1{
height:100px;
width: 100px;
background: red;
position:absolute;
margin-left: 5px;
}
</style>
<script>
window.onload = function ()
{
var odiv = document.getElementById(‘div1‘);
var oinput = document.getElementsByTagName(‘input‘)[0];
oinput.onclick = function ()
{
ToMove(odiv,500);
}
function ToMove(obj,goal)
{
clearInterval(obj.timer);
obj.timer = setInterval(function(){
var icur = obj.offsetLeft;
if(icur >= goal)
{
clearInterval(obj.timer);
}
else
{
var speed = (goal - obj.offsetLeft) / 8;
speed = speed > 0 ? Math.ceil(speed): Math.floor(speed);
obj.style.left = obj.offsetLeft + speed + ‘px‘;
}
},50);
}
}
</script>
<body>
<input type="button" value = "提交">
<div id="div1"></div>
</body>
</HTML>
原文：http://www.cnblogs.com/mayufo/p/4338081.html