本文實例講述了JS實現簡單的右下角彈出提示窗口效果。分享給大家供大家參考，具體如下：
<!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>aa</title>
<style type="text/css">
* {
margin: 0px;
padding: 0px;
}
html, body {
height: 100%;
}
body {
font-size: 14px;
line-height: 24px;
}
#tip {
position: absolute;
right: 0px;
bottom: 0px;
height: 0px;
width: 180px;
border: 1px solid #CCCCCC;
background-color: #eeeeee;
padding: 1px;
overflow: hidden;
display: none;
font-size: 12px;
z-index: 10;
}
#tip p {
padding: 6px;
}
#tip h1 {
font-size: 14px;
height: 25px;
line-height: 25px;
background-color: #0066CC;
color: #FFFFFF;
padding: 0px 3px 0px 3px;
filter: Alpha(Opacity = 100);
}
#tip h1 a, #detail h1 a {
float: right;
text-decoration: none;
color: #FFFFFF;
}
</style>
<script type="text/javascript">
window.onload = function(){
var divTip = document.createElement("div");
divTip.id = "tip";
divTip.innerHTML = "<h1><a href='javascript:void(0)' onclick='start()'>關閉</a>title</h1><p><a href='javascript:void(0)' onclick='showwin()'>content</a></p>";
divTip.style.height = '0px';
divTip.style.bottom = '0px';
divTip.style.position = 'fixed';
document.body.appendChild(divTip);
}
var handle;
function start(count){
var obj = document.getElementById("tip");
if (parseInt(obj.style.height) == 0) {
obj.style.display = "block";
handle = setInterval("changeH('up')", 20);
}
else {
handle = setInterval("changeH('down')", 20)
}
}
function changeH(str){
var obj = document.all ? document.all["tip"] : document.getElementById("tip"); //docuemnt.all ??????
if (str == "up") {
if (parseInt(obj.style.height) > 100)
clearInterval(handle);
else
obj.style.height = (parseInt(obj.style.height) + 8).toString() + "px";
}
if (str == "down") {
if (parseInt(obj.style.height) < 8) {
clearInterval(handle);
obj.style.display = "none";
}
else
obj.style.height = (parseInt(obj.style.height) - 8).toString() + "px";
}
}
function showwin(){
//document.getElementsByTagName("html")[0].style.overflow = "hidden";
start();
}
</script>
</head>
<body>
<a href="#" onclick="start()">click</a>
</body>
</html>
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希望本文所述對大家JavaScript程序設計有所幫助。