垂直飘浮的图片

人气：　来源：本站原创　作者：佚名　所属栏目：图片类　[切换到繁體中文]

介绍：广告经常用的一种随滚动条移动的图片。

演示：

<!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>站长手册_特效演示_垂直飘浮的图片</title>
<style><!--body,td{font-size: 12px;}--></style>

</head>
<body bgcolor="" >
<table width="100%" height="1000" border="0" cellpadding="10" cellspacing="5">
<tr>
<td valign="top">
<div id="point1" STYLE="position:absolute;visibility:visible;">
<!--Please delete this table and insert into your html elements-->
<table border="0" cellspacing="0" cellpadding="0">
<tr>
<td>
<a href="#">
<img src="http://www.zzsc.org/texiao/zzsc_demo/07090701.gif" alt="" border="0">
</a>
</td>
</table>
<!--End of the customizable area, please do not delete div the tag -->
</div>


<script LANGUAGE="JavaScript1.2">

/*
Floating image II (up down)- Bruce Anderson (http://appletlib.tripod.com)
Submitted to Dynamicdrive.com to feature script in archive
Modified by DD for script to function in NS6
For 100's of FREE DHTML scripts, Visit http://www.dynamicdrive.com
*/

var XX=20; // X position of the scrolling objects
var xstep=1;
var delay_time=60;

//Begin of the unchangable area, please do not modify this area
var YY=0;  
var ch=0;
var oh=0;
var yon=0;

var ns4=document.layers?1:0
var ie=document.all?1:0
var ns6=document.getElementById&&!document.all?1:0

if(ie){
YY=document.body.clientHeight;
point1.style.top=YY;
}
else if (ns4){
YY=window.innerHeight;
document.point1.pageY=YY;
document.point1.visibility="hidden";
}
else if (ns6){
YY=window.innerHeight
document.getElementById('point1').style.top=YY
}


function reloc1()
{

if(yon==0){YY=YY-xstep;}
else{YY=YY+xstep;}
if (ie){
ch=document.body.clientHeight;
oh=point1.offsetHeight;
}
else if (ns4){
ch=window.innerHeight;
oh=document.point1.clip.height;
}
else if (ns6){
ch=window.innerHeight
oh=document.getElementById("point1").offsetHeight
}
		
if(YY<0){yon=1;YY=0;}
if(YY>=(ch-oh)){yon=0;YY=(ch-oh);}
if(ie){
point1.style.left=XX;
point1.style.top=YY+document.body.scrollTop;
}
else if (ns4){
document.point1.pageX=XX;
document.point1.pageY=YY+window.pageYOffset;
}
else if (ns6){
document.getElementById("point1").style.left=XX
document.getElementById("point1").style.top=YY+window.pageYOffset
}

}

function onad()
{
if(ns4)
document.point1.visibility="visible";
loopfunc();
}
function loopfunc()
{
reloc1();
setTimeout('loopfunc()',delay_time);
}

if (ie||ns4||ns6)
window.onload=onad

</script>
</td>
</tr>
</table>
</body>
</html>

[Ctrl+A全选提示：你可先修改部分代码，再按运行]

下面教你如何应用此特效：
　--------------------------------------------------------------------------------------
　　需要在<body 这里>加入的代码：
　--------------------------------------------------------------------------------------

以下代码加到<head>…</head>中

以下代码加到<body>…</body>中

/*
Floating image II (up down)- Bruce Anderson (http://appletlib.tripod.com)
Submitted to Dynamicdrive.com to feature script in archive
Modified by DD for script to function in NS6
For 100's of FREE DHTML scripts, Visit http://www.dynamicdrive.com
*/

var XX=20; // X position of the scrolling objects
var xstep=1;
var delay_time=60;

//Begin of the unchangable area, please do not modify this area
var YY=0;
var ch=0;
var oh=0;
var yon=0;

var ns4=document.layers?1:0
var ie=document.all?1:0
var ns6=document.getElementById&&!document.all?1:0

if(ie){
YY=document.body.clientHeight;
point1.style.top=YY;
}
else if (ns4){
YY=window.innerHeight;
document.point1.pageY=YY;
document.point1.visibility="hidden";
}
else if (ns6){
YY=window.innerHeight
document.getElementById('point1').style.top=YY
}

function reloc1()
{

if(yon==0){YY=YY-xstep;}
else{YY=YY+xstep;}
if (ie){
ch=document.body.clientHeight;
oh=point1.offsetHeight;
}
else if (ns4){
ch=window.innerHeight;
oh=document.point1.clip.height;
}
else if (ns6){
ch=window.innerHeight
oh=document.getElementById("point1").offsetHeight
}

if(YY<0){yon=1;YY=0;}
if(YY>=(ch-oh)){yon=0;YY=(ch-oh);}
if(ie){
point1.style.left=XX;
point1.style.top=YY+document.body.scrollTop;
}
else if (ns4){
document.point1.pageX=XX;
document.point1.pageY=YY+window.pageYOffset;
}
else if (ns6){
document.getElementById("point1").style.left=XX
document.getElementById("point1").style.top=YY+window.pageYOffset
}