js 右側浮動層效果實現代碼(跟隨滾動)

2024-05-06 16:25:13

字體：大中小

來源：轉載

供稿：網友

因為項目上有這樣的需求，在網上也查了些東西，之前是想找個差不多類似的套用一下。后來發覺沒有合適的，因時間緊迫就自己動手寫了一個簡單的，示例代碼如下兼容火狐和IE7+

實現代碼一、

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

<html>

<head>

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

<title>無標題文檔</title>



<script type="text/javascript">

//<![CDATA[

var tips; var theTop = 200/*這是默認高度,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">

最新的活動

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

顯示最新的活動

</div>

</div>



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

<tr>

<td height="2101">

</td>

</tr>

</table>

</body>

</html>

如果有時間的話會稍作美化然后加上動畫效果應該就能算是個不錯的浮動隱藏層了。

方法二、

一、把以下代碼插入

標簽中：

<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;">

浮動層示例：<br />

<a target="_blank" href="tencent://message/?uin=101535223&Site=http://www.49028c.com&Menu=yes"><img border="0" src="http://wpa.qq.com/pa?p=1:101535223:3" alt="有事您說話"></a>

</div>

二、把以下代碼插到標簽之后，設置MarginLeft、MarginTop、Width、Heigth四個變量的值

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

var MarginLeft = 30; //浮動層離瀏覽器右側的距離

var MarginTop = 50; //浮動層離瀏覽器頂部的距離

var Width = 120; //浮動層寬度

var Heigth= 45; //浮動層高度

//設置浮動層寬、高

function Set()

{

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

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

}

//實時設置浮動層的位置

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>