function initEcAd() { 
document.all.AdLayer2.style.posTop = -200; 
document.all.AdLayer2.style.visibility = 'visible' 
MoveRightLayer('AdLayer2'); 
} 
function MoveRightLayer(layerName) { 
var x = 15; 
var y = 200;// 右侧广告距离页首高度 
var diff = (document.body.scrollTop + y - document.all.AdLayer2.style.posTop)*.40; 
var y = document.body.scrollTop + y - diff; 
eval("document.all." + layerName + ".style.posTop = y"); 
eval("document.all." + layerName + ".style.posRight = x"); 
setTimeout("MoveRightLayer('AdLayer2');", 20); 
} 

document.write("<div id=AdLayer2 style='position: absolute;visibility:hidden;z-index:1'><a href='http://www.zzgaj.com/zxdd.asp' target='_blank'><img src='Images/zxdd.gif' border='0'></a></div>"); 
initEcAd();