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js 右侧浮动层效果实现代码(跟随滚动)

2015-11-23 10:01作者:fang

实现代码一、

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />

<title>无标题文档</title>

<!--***********开始*************-->

<script type="text/javascript">

//<![CDATA[

var tips; var theTop = 200/*这是默认高度,越大越往下*/; var old = theTop;

function initFloatTips() {

tips = document.getElementById('floatTips');

moveTips();

};

function moveTips() {

var tt = 50;

if (window.innerHeight) {

pos = window.pageYOffset

}

else if (document.documentElement && document.documentElement.scrollTop) {

pos = document.documentElement.scrollTop

}

else if (document.body) {

pos = document.body.scrollTop;

}

pos = pos - tips.offsetTop + theTop;

pos = tips.offsetTop + pos / 10;

if (pos < theTop) pos = theTop;

if (pos != old) {

tips.style.top = pos + "px";

tt = 10;

}

old = pos;

setTimeout(moveTips, tt);

}

//!]]>

</script>

<style type="text/css">

.floatTips

{

position: absolute;

border: solid 1px #777;

padding: 3px;

top: 250px;

right: 5px;

width: 30px;

height: 300px;

background: #cccccc;

color: white;

}

.showDiv

{

position: absolute;

border: solid 1px #777;

padding: 3px;

top: 250px;

right: 5px;

width: 300px;

height: 300px;

background: #cccccc;

color: white;

}

</style>

<script type="text/javascript">

function FunOnmouseUp() {

var objFloatTips = $("floatTips");

var objActivityContext = $("activityContext");

objFloatTips.className = "showDiv";

objActivityContext.style.display = "";

}

function FunMouseOut() {

var objFloatTips = $("floatTips");

var objActivityContext = $("activityContext");

objFloatTips.className = "floatTips";

objActivityContext.style.display = "none";

}

function $(objID) {

return document.getElementById(objID);

}

</script>

</head>

<body onload="initFloatTips()">

<div id="floatTips" onmouseover="FunOnmouseUp()" onmouseout="FunMouseOut()" class="floatTips">

最新的活动

<div id="activityContext" style="display: none">

显示最新的活动

</div>

</div>

<!--**********结束***************-->

<table width="100%" border="0" cellpadding="0" cellspacing="0" bgcolor="#F7F7F7">

<tr>

<td height="2101">

</td>

</tr>

</table>

</body>

</html>

如果有时间的话 会稍作美化 然后加上动画效果 应该就能算是个不错的浮动隐藏层了。

方法二、

一、把以下代码插入<body></body>标签中:

<div id="FloatDIV" style="position: absolute;top: 0px; border-right: activeborder 1px solid; border-top: activeborder 1px solid; border-left: activeborder 1px solid; border-bottom: activeborder 1px solid;">

浮动层示例:<br />

<a target="_blank" href="tencent://message/?uin=101535223&Site=http://www.jb51.net&Menu=yes"><img border="0" src="http://wpa.qq.com/pa?p=1:101535223:3" alt="有事您说话"></a>

</div>

二、把以下代码插到</body>标签之后,设置MarginLeft、MarginTop、Width、Heigth四个变量的值

<script language="javascript" type="text/javascript">

var MarginLeft = 30; //浮动层离浏览器右侧的距离

var MarginTop = 50; //浮动层离浏览器顶部的距离

var Width = 120; //浮动层宽度

var Heigth= 45; //浮动层高度

//设置浮动层宽、高

function Set()

{

document.getElementById("FloatDIV").style.width = Width;

document.getElementById("FloatDIV").style.height = Heigth;

}

//实时设置浮动层的位置

function Move()

{

document.getElementById("FloatDIV").style.top = document.documentElement.scrollTop + MarginTop;

document.getElementById("FloatDIV").style.left = document.documentElement.clientWidth - Width - MarginLeft;

setTimeout("Move();",100);

}

Set();

Move();

</script>

以上就是本文章的内容,希望对大家有所帮助。

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