js上下滚动代码
最近项目需要做了一个网页图片图片滚动的界面，参考
http://www.cnblogs.com/blueSkys/archive/2010/03/15/1686476.html。
代码如下感觉还可以给大家分享一下，拷贝下来后可以直接本地运行里面图片是网络图片所以要连接网络，废话少说直接上代码。
<head>
<----->
</head>
<body>
<！--向下滚动代码开始-->
<div id="colee" style="overflow:hidden;height:253px;width:410px;">
<div id="colee1">
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
</div>
<div id="colee2"></div>
</div>
<script>
var speed=30;
var colee2=document.getElementById("colee2");
var colee1=document.getElementById("colee1");
var colee=document.getElementById("colee");
colee2.innerHTML=colee1.innerHTML; //克隆colee1为colee2
function Marquee1(){
//当滚动至colee1与colee2交界时
if(colee2.offsetTop-colee.scrollTop<=0){
colee.scrollTop-=colee1.offsetHeight; //colee跳到最顶端
}else{
colee.scrollTop++
}
}
var MyMar1=setInterval(Marquee1,speed)//设置定时器
//鼠标移上时清除定时器达到滚动停止的目的
colee.onmouseover=function() {clearInterval(MyMar1)}
//鼠标移开时重设定时器
colee.onmouseout=function(){MyMar1=setInterval(Marquee1,speed)}
</script>
<!--向上滚动代码结束-->
<br>
<!--下面是向下滚动代码-->
<div id="colee_bottom" style="overflow:hidden;height:253px;width:410px;">
<div id="colee_bottom1">
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
<p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p>
</div>
<div id="colee_bottom2"></div>
</div>
<script>
var speed=30
var colee_bottom2=document.getElementById("colee_bottom2");
var colee_bottom1=document.getElementById("colee_bottom1");
var colee_bottom=document.getElementById("colee_bottom");
colee_bottom2.innerHTML=colee_bottom1.innerHTML
colee_bottom.scrollTop=colee_bottom.scrollHeight
function Marquee2(){
if(colee_bottom1.offsetTop-colee_bottom.scrollTop>=0)
colee_bottom.scrollTop+=colee_bottom2.offsetHeight
else{
colee_bottom.scrollTop--
}
}
var MyMar2=setInterval(Marquee2,speed)
colee_bottom.onmouseover=function() {clearInterval(MyMar2)}
colee_bottom.onmouseout=function() {MyMar2=setInterval(Marquee2,speed)}
</script>
<!--向下滚动代码结束-->
<br>
<!--下面是向左滚动代码-->
<div id="colee_left" style="overflow:hidden;width:500px;">
<table cellpadding="0" cellspacing="0" border="0">
<tr><td id="colee_left1" valign="top" align="center">
<table cellpadding="2" cellspacing="0" border="0">
<tr align="center">
<td><p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p></td>
<td><p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p></td>
<td><p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p></td>
<td><p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p></td>
<td><p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p></td>
<td><p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p></td>
<td><p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p></td>
</tr>
</table>
</td>
<td id="colee_left2" valign="top"></td>
</tr>
</table>
</div>
<script>
//使用div时，请保证colee_left2与colee_left1是在同一行上.
var speed=30//速度数值越大速度越慢
var colee_left2=document.getElementById("colee_left2");
var colee_left1=document.getElementById("colee_left1");
var colee_left=document.getElementById("colee_left");
colee_left2.innerHTML=colee_left1.innerHTML
function Marquee3(){
if(colee_left2.offsetWidth-colee_left.scrollLeft<=0)//offsetWidth 是对象的可见宽度
colee_left.scrollLeft-=colee_left1.offsetWidth//scrollWidth 是对象的实际内容的宽，不包边线宽度
else{
colee_left.scrollLeft++
}
}
var MyMar3=setInterval(Marquee3,speed)
colee_left.onmouseover=function() {clearInterval(MyMar3)}
colee_left.onmouseout=function() {MyMar3=setInterval(Marquee3,speed)}
</script>
<!--向左滚动代码结束-->
<br>
<!--下面是向右滚动代码-->
<div id="colee_right" style="overflow:hidden;width:500px;">
<table cellpadding="0" cellspacing="0" border="0">
<tr><td id="colee_right1" valign="top" align="center">
<table cellpadding="2" cellspacing="0" border="0">
<tr align="center">
<td><p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p></td>
<td><p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p></td>
<td><p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p></td>
<td><p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p></td>
<td><p><img src="http://www.codefans.net/jscss/demoimg/200907/bg3.jpg"></p></td>
</tr>
</table>
</td>
<td id="colee_right2" valign="top"></td>
</tr>
</table>
</div>
<script>
var speed=30//速度数值越大速度越慢
var colee_right2=document.getElementById("colee_right2");
var colee_right1=document.getElementById("colee_right1");
var colee_right=document.getElementById("colee_right");
colee_right2.innerHTML=colee_right1.innerHTML
function Marquee4(){
if(colee_right.scrollLeft<=0)
colee_right.scrollLeft+=colee_right2.offsetWidth
else{
colee_right.scrollLeft--
}
}
var MyMar4=setInterval(Marquee4,speed)
colee_right.onmouseover=function() {clearInterval(MyMar4)}
colee_right.onmouseout=function() {MyMar4=setInterval(Marquee4,speed)}
</script>
<!--向右滚动代码结束-->
</body>
</html>
按上下键移动，可以把数字改成图片
<head>
<----->
</head>
<body>
<！--向下滚动代码开始-->
<div id="colee" style="overflow:hidden;height:253px;width:410px;">
<div id="colee1">
<p>1</p>
<p>2</p>
<p>3</p>
<p>4</p>
<p>5</p>
<p>6</p>
<p>7</p>
<p>8</p>
<p>9</p>
<p>10</p>
</div>
<div id="colee2" style="height:0px"></div>
</div>
<script>
var speed=2;
var step = 50;
var colee2=document.getElementById("colee2");
var colee1=document.getElementById("colee1");
var colee=document.getElementById("colee");
var MyMar1=setInterval(Marquee1,speed)//设置定时器
colee2.innerHTML=colee1.innerHTML; //克隆colee1为colee2
function Marquee1(){
//当滚动至colee1与colee2交界时
if(colee2.offsetTop-colee.scrollTop<=0){
//colee.scrollTop-=colee1.offsetHeight; //colee跳到最顶端
//alert(1);
colee.scrollTop = 10;
}else{
step--;
if(step>0)
{
colee.scrollTop++;
}
else
{
step = 50;
clearInterval(MyMar1);
}
}
}
function Marquee2(){
//当滚动至colee1与colee2交界时
//alert(colee2.offsetTop+";"+colee.scrollTop);
if(colee.scrollTop<=0){
//alert(1);
//colee.scrollTop-=colee1.offsetHeight; //colee跳到最顶端
//alert(1);
//alert(colee2.offsetTop+";"+colee.scrollTop);
colee.scrollTop += (colee2.offsetTop-50);
}else{
step--;
if(step>0)
{
colee.scrollTop--;
}
else
{
step = 50;
clearInterval(MyMar1);
}
}
}
function movup()
{
clearInterval(MyMar1);
MyMar1=setInterval(Marquee1,speed);
}
function movdown()
{
clearInterval(MyMar1);
MyMar1=setInterval(Marquee2,speed);
}
document.body.onkeydown=window.onkeydown=function(e)
{
var keyCode ;
if(!e)
{
e=window.event;
}
if(document.all)
{
keyCode=e.keyCode;
}
else
{
keyCode=e.which;
}
switch(keyCode)
{
/*left*/
case 37:
case 38:
movup();
break;
/*right*/
case 39:
case 40:
movdown();
break;
}
}
</script>
</body>
</html>