function initEcAd() { 
document.all.AdLayer1.style.posTop = -200;             
document.all.AdLayer1.style.visibility = 'visible'   
document.all.AdLayer2.style.posTop = -200;            
document.all.AdLayer2.style.visibility = 'visible'    
MoveLeftLayer('AdLayer1');          
MoveRightLayer('AdLayer2'); 
} 
function MoveLeftLayer(layerName) { 
var x =13;       
var y =13;      

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 =13;     
var y =13;   
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.cewte-expo.com target=_blank><img src=guanggao/100-100zz.gif border=0 width=100 height=100></a><br><br><a href=http://www.chinaozone.com/zhinfo.asp?zhid=214 target=_blank><img src=guanggao/1015ks.gif border=0 width=100 height=100></a><br><br><a href=http://www.cibpdwe.com target=_blank><img src=guanggao/bj80x80.gif border=0 width=100 height=100></a><br><br><a href=http://www.waterexpo.org target=_blank><img src=guanggao/sz1006.gif border=0 width=100 height=100></a><br><br><a href=guanggao/cp-33.gif target=_blank><img src=guanggao/cp-3.gif border=0 width=100 height=100></a></div>" 
+"<div id=AdLayer2 style='position: absolute;visibility:hidden;z-index:1'><a href=Http://www.chinaozone.com/zhinfo.asp?zhid=215 target=_blank><img src=guanggao/sx1013.gif border=0 width=100 height=100><br><br><a href=guanggao/cp-11.gif target=_blank><img src=guanggao/cp-1.gif border=0 width=100 height=100></a><br><br><a href=http://www.sinoexhibition.com/ep target=_blank><img src=guanggao/ep80x80.gif border=0 width=100 height=100><br><br><a href=http://www.cibpdwe.com target=_blank><img src=guanggao/bj80x80.gif border=0 width=100 height=100></a><br><br><a href=http://www.water-west.cn target=_blank><img src=guanggao/80-80cd.gif border=0 width=100 height=100></a></div>"); 
initEcAd()