请问一个javascript效果？

<SCRIPT LANGUAGE="JavaScript">

</SCRIPT>
 
 
 
 
 我也贴一个！！

obj1.style.top=document.body.scrollTop+"px";可以实现下滚动效果。

http://bbs.blueidea.com/thread-1821912-1-1.html

我觉得就是获得鼠标的当前纵坐标然后将这个纵坐标值赋给广告的div就可以了把

<!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>Untitled Document</title>
<script language=vbs>
for i = 1 to 200
document.write (" ")
next
</script>
<script language="JavaScript">



 var delta=0.15
 var collection;
 function floaters() {
 this.items = [];
 this.addItem = function(id,x,y,content)
 {
 document.write(' <DIV id='+id+' style="Z-INDEX: 10; POSITION: absolute; width:80px; height:60px;left:'+(typeof(x)=='string'?eval(x):x)+';top:'+(typeof(y)=='string'?eval(y):y)+'">'+content+' </DIV>');

 var newItem = {};
 newItem.object = document.getElementById(id);
 newItem.x = x;
 newItem.y = y;
 this.items[this.items.length] = newItem;
 }
 this.play = function()
 {
 collection = this.items
 setInterval('play()',10);
 }
 }
 function play()
 {
 if(screen.width <=800)
 {
 for(var i=0;i <collection.length;i++)
 {
 collection[i].object.style.display = 'none';
 }
 return;
 }
 for(var i=0;i <collection.length;i++)
 {
 var followObj = collection[i].object;
 var followObj_x = (typeof(collection[i].x)=='string'?eval(collection[i].x):collection[i].x);
 var followObj_y = (typeof(collection[i].y)=='string'?eval(collection[i].y):collection[i].y);
 if(followObj.offsetLeft!=(document.body.scrollLeft+followObj_x)) {
 var dx=(document.body.scrollLeft+followObj_x-followObj.offsetLeft)*delta;
 dx=(dx>0?1:-1)*Math.ceil(Math.abs(dx));
 followObj.style.left=followObj.offsetLeft+dx;
 }
 if(followObj.offsetTop!=(document.body.scrollTop+followObj_y)) {
 var dy=(document.body.scrollTop+followObj_y-followObj.offsetTop)*delta;
 dy=(dy>0?1:-1)*Math.ceil(Math.abs(dy));
 followObj.style.top=followObj.offsetTop+dy;
 }
 followObj.style.display = '';
 }
 }

 var theFloaters = new floaters();
 theFloaters.addItem('followDiv1','document.body.clientWidth-106',80,' <a href=http://blueidea.com target=_blank> <img src=http://www.blueidea.com/img/common/close.gif border=0> </a> ');
 theFloaters.addItem('followDiv2',6,80,' <a href=http://blueidea.com target=_blank> <img src=http://www.blueidea.com/img/common/close.gif border=0> </a> <br');
 theFloaters.play();
 </script>
<style type="text/css">

</style>
</head><body>
<div id="followDiv1"></div>
<div id="followDiv2"></div>
</body>
</html>我是这样写的啊，运行了网页不行啊？怎么不能向下移动呢？555

<!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>Untitled Document</title>
<style type="text/css">

</style>
<SCRIPT LANGUAGE="JavaScript">

</SCRIPT>
</head><body onload="initEcAd()">
<div id="AdLayer1"></div>
<div id="AdLayer2"></div>
 
 
 
 
 
</body>
</html>
我这样也试过了。不行啊？？？

把以下代码插入到自助建站的版权信息里面的htm代码视图里面：（把里面的图片地址和链接地址换成自己的就可以了）<script> var delta=0.15
 var collection;
 function floaters() {
 this.items = [];
 this.addItem = function(id,x,y,content)
 {
 document.write('<DIV id='+id+' style="Z-INDEX: 10; POSITION: absolute; width:80px; height:60px;left:'+(typeof(x)=='string'?eval(x):x)+';top:'+(typeof(y)=='string'?eval(y):y)+'">'+content+'</DIV>');

 var newItem = {};
 newItem.object = document.getElementById(id);
 newItem.x = x;
 newItem.y = y; this.items[this.items.length] = newItem;
 }
 this.play = function()
 {
 collection = this.items
 setInterval('play()',10);
 }
 }
 function play()
 {
 if(screen.width<=800)
 {
 for(var i=0;i<collection.length;i++)
 {
 collection[i].object.style.display = 'none';
 }
 return;
 }
 for(var i=0;i<collection.length;i++)
 {
 var followObj = collection[i].object;
 var followObj_x = (typeof(collection[i].x)=='string'?eval(collection[i].x):collection[i].x);
 var followObj_y = (typeof(collection[i].y)=='string'?eval(collection[i].y):collection[i].y); if(followObj.offsetLeft!=(document.body.scrollLeft+followObj_x)) {
 var dx=(document.body.scrollLeft+followObj_x-followObj.offsetLeft)*delta;
 dx=(dx>0?1:-1)*Math.ceil(Math.abs(dx));
 followObj.style.left=followObj.offsetLeft+dx;
 } if(followObj.offsetTop!=(document.body.scrollTop+followObj_y)) {
 var dy=(document.body.scrollTop+followObj_y-followObj.offsetTop)*delta;
 dy=(dy>0?1:-1)*Math.ceil(Math.abs(dy));
 followObj.style.top=followObj.offsetTop+dy;
 }
 followObj.style.display = '';
 }
 }

 var theFloaters = new floaters();
 theFloaters.addItem('followDiv1','document.body.clientWidth-106',80,'<a href=http://www.dns333.com/ target=_blank><img src=http://t3.baidu.com/it/u=2759836254,1680293180&gp=2.jpg border=0></a> <a href=http://www.dns333.net/ target=_blank><img src=http://t0.baidu.com/it/u=3785541142,1713759099&gp=3.jpg border=0>');
 theFloaters.addItem('followDiv2',6,80,'<a href=http://www.dns333.net/ target=_blank><img src=http://t3.baidu.com/it/u=2759836254,1680293180&gp=2.jpg border=0></a> <a href=http://www.dns333.com/ target=_blank><img src=http://t0.baidu.com/it/u=3785541142,1713759099&gp=3.jpg border=0> ');
 theFloaters.play();</script>

我自己写的这个可以动左边的，不能动右边的广告。请高手看看是怎么回事？谢
<script language="javascript" type="text/javascript">
 var divAdInitTop;
 function initDivAd()
 {
 divAdInitTop = document.getElementById("apDiv2").style.pixelTop;
 window.onscroll = moveDivAd;
 }
 function moveDivAd()
 {
 if(document.documentElement.scrollTop != 0){
 document.getElementById("apDiv2").style.pixelTop = divAdInitTop + document.documentElement.scrollTop;
 document.getElementById("apDiv2").style.backgroundImage="../images/DivTitleLogin.gif";

 document.getElementById("apDivA1").style.pixelTop = divAdInitTop + document.documentElement.scrollTop;
 document.getElementById("apDivA1").style.backgroundImage="../images/DivTitleLogin.gif";
 }

 else{
 document.getElementById("apDiv2").style.pixelTop = divAdInitTop + document.body.scrollTop;
 document.getElementById("apDiv2").style.backgroundImage="../images/DivTitleLogin.gif";

 document.getElementById("apDivA1").style.pixelTop = divAdInitTop + document.body.scrollTop;
 document.getElementById("apDivA1").style.backgroundImage="../images/DivTitleLogin.gif";
 }
 }
</javascript">

参考帖子
http://topic.csdn.net/u/20090707/09/853aa9ec-af9b-46f4-866c-89a23d58feb0.html?19392

调试易

请问一个javascript效果？

解决方案 »