function initEcAd() {
document.all.AdLayer1.style.posTop = -100;
document.all.AdLayer1.style.visibility = 'visible'
document.all.AdLayer2.style.posTop = -100;
document.all.AdLayer2.style.visibility = 'visible'
MoveLeftLayer('AdLayer1');
MoveRightLayer('AdLayer2');
}

function MoveLeftLayer(layerName) {
var x = 5;
var y = 80 ;
var diff = (document.body.scrollTop + y - document.all.AdLayer1.style.posTop)*.40;
var y = document.body.scrollTop + y - diff;
eval("document.all." + layerName + ".style.posTop = y");
eval("document.all." + layerName + ".style.posLeft = x");
setTimeout("MoveLeftLayer('AdLayer1');", 20);
}
function MoveRightLayer(layerName) {
var x = 5;
var y = 80;
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=AdLayer1 style='position: absolute;visibility:hidden;z-index:1'><a  href=http://www.sungallon.com/SGS报告.rar title='点击下载SGS报告' target=_blank><img src=images/skytower_01.jpg   border=0></a></div>"
 +"<div id=AdLayer2 style='position: absolute;visibility:hidden;z-index:1'><a  href=http://hifly.club.vnet.cn/2007man.htm target=_blank></a></div>");
initEcAd()