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右下角弹窗效果练习(转载JS技术)

2010-06-02 10:41 316 查看
<!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=GB2312" />
<title>右下角弹窗效果练习</title>
<script language="JavaScript" type="text/javascript">
function $(obj){
return document.getElementById(obj);
}
function pop(obj){
var h = parseInt($("popDiv").currentStyle.height);
$("popDiv").style.height = (h + obj) + "px";
if(parseInt($("popDiv").style.height) < 2){
window.clearInterval(timer);
$("popDiv").style.display = "none";
}
if(parseInt($("popDiv").style.height) >= 200){
window.clearInterval(timer);
}

}

var timer;
function runtimer(obj){
timer = window.setInterval(function(){pop(obj)},10);
}
window.onload = function(){
runtimer(2);
}
</script>
</head>
<body>
<div style="position:absolute;right:0;bottom:0;height:0px;width:200px;border:1px solid red;" id="popDiv">
<a href="javascript:runtimer(-2);void(0)">×</a>
</div>
</body>
</html>
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