setInterval(function,interval[,arg1,arg2,......argn]) setInterval(object,methodName,interval[,arg1,arg2,.....argn])
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>简单JS动画实例 广告移动效果</title>
</head>
<body>
<div id="one" style="background-color:red; position:absolute; left:0; top:0; height:100px; height:100px; ">
移动广告
</div>
<script type="text/javascript">
var x=0; //对象X轴位置
var y=0; //对象Y轴位置
var xs = 10; //对象X轴移动速度
var ys = 10; //对象Y轴移动速度
var one = document.getElementById('one');
function move(){
x += xs;
y += ys;
one.style.left = x;
one.style.top = y;
if (x > document.body.clientWidth - one.offsetWidth-20 || x<0) {
xs = -1*xs; //速度取反
}
if (y > document.body.clientHeight - one.offsetHeight-20 || y<0){
ys = -1*ys;
}
}
var obj = setInterval('move()', 100);
one.onmouseover = function(){ //
clearInterval(obj);
}
one.onmouseout = function (){
obj = setInterval('move()', 100);
}
</script>
</body>
</html>
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