<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style>
div{width:100px;height:100px;font-size:14px;background:red;border:2px solid #000;margin-top:50px;filter:alpha(opacity:30);opacity:0.3;}
</style>
<script>
window.onload = function(){
var arrDiv = document.getElementsByTagName('div');
arrDiv[0].onmouseover = function(){
startMove(this,'width',300);
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startMove(this,'height',300);
};
arrDiv[2].onmouseover = function(){
startMove(this,'fontSize',100);
};
arrDiv[3].onmouseover = function(){
startMove(this,'borderWidth',50); /*兼容性问题*/
};
arrDiv[4].onmouseover = function(){
startMove(this,'opacity',100); /*兼容性问题*/
};
arrDiv[4].onmouseout = function(){
startMove(this,'opacity',30); /*兼容性问题*/
};
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clearInterval(obj.timer);
obj.timer = setInterval(function(){
if(attr == 'opacity'){
var iCur = parseInt(parseFloat(getStyle(obj,attr))*100); /*避免用到小数，alert(0.07*100) //7.000000001*/
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var speed = (target-iCur)/8;
speed = speed > 0 ? Math.ceil(speed) : Math.floor(speed);
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},30);
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</script>
</head>
<body>
<div></div>
<div></div>
<div>esfdfd</div>
<div></div>
<div></div>
</body>
</html>
