左右两侧的广告代码简单

<SCRIPT>function initEcAd(LName,RName) { 
document.all.NowAd_left.style.posTop = -200; 
document.all.NowAd_left.style.visibility = 'visible'; 
document.all.NowAd_left.style.position = 'absolute'; 
document.all.NowAd_right.style.posTop = -200; 
document.all.NowAd_right.style.visibility = 'visible'; 
document.all.NowAd_right.style.position = 'absolute'; 
MoveLeftLayer(LName); 
MoveRightLayer(RName); 
} 
function MoveLeftLayer(LName) { 
var x = 5; 
var y = 165; 
LeftName=LName; 
eval("var diff = (document.body.scrollTop + y - document.all." + LeftName + ".style.posTop)*.40"); 
var y = document.body.scrollTop + y - diff; 
eval("document.all." + LeftName + ".style.posTop = y"); 
eval("document.all." + LeftName + ".style.posLeft = x"); 
setTimeout("MoveLeftLayer(LeftName);", 20); 
} 
function MoveRightLayer(RName) { 
var x = 5; 
var y = 165; 
RightName=RName; 
eval("var diff = (document.body.scrollTop + y - document.all." + RightName + ".style.posTop)*.40"); 
var y = document.body.scrollTop + y - diff; 
eval("document.all." + RightName + ".style.posTop = y"); 
eval("document.all." + RightName + ".style.posRight = x"); 
setTimeout("MoveRightLayer(RightName);", 20); 
} 
document.write("<span id=NowAd_left><img src='http://pcqc.86516.com/huodong/0718/zijia.gif' WIDTH=100 HEIGHT=250 border=0></img></span>" 
 +"<span id=NowAd_right><img src='http://pcqc.86516.com/huodong/0718/zijia.gif' WIDTH=100 HEIGHT=250 border=0></img></span>"); 
initEcAd("NowAd_left","NowAd_right")</SCRIPT>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]

左右两侧的广告代码简单_广告代码