function initEcAd()
{
	document.getElementById('AdLayer1').style.top = 0;
	//document.getElementById('AdLayer1').style.visibility = 'visible'
	document.getElementById('AdLayer2').style.top = 0;
	//document.getElementById('AdLayer2').style.visibility = 'visible'
	MoveLeftLayer('AdLayer1');
	MoveRightLayer('AdLayer2');
}
function MoveLeftLayer(layerName) {
var x = "800px";
var y = 50;// 左侧广告距离页首高度
var diff = (document.documentElement.scrollTop + y - document.getElementById('AdLayer1').style.posTop)*.40;
var y = document.documentElement.scrollTop + y - diff;
eval("document.getElementById('" + layerName + "').style.top = parseInt(y)");
eval("document.getElementById('" + layerName + "').style.right = x");
setTimeout("MoveLeftLayer('AdLayer1');", 20);
}
function MoveRightLayer(layerName) {
var x = "800px";
var y = 50;// 右侧广告距离页首高度
var diff = (document.documentElement.scrollTop + y - document.getElementById('AdLayer2').style.posTop)*.30;
var y = document.documentElement.scrollTop + y - diff;
eval("document.getElementById('" + layerName + "').style.top = parseInt(y)");
eval("document.getElementById('" + layerName + "').style.left = x");
setTimeout("MoveRightLayer('AdLayer2');", 200);
}