function initEcAd() {
	if(ad_left_show){
		document.all.AdLayer1.style.posTop = -200;
		document.all.AdLayer1.style.visibility = 'visible'
		MoveLeftLayer('AdLayer1');
	}
	
	if(ad_right_show){
		document.all.AdLayer2.style.posTop = -200;
		document.all.AdLayer2.style.visibility = 'visible'
		MoveRightLayer('AdLayer2');
	}
}
function MoveLeftLayer(layerName) {
	var x = 5;
	var y = 250;// 左侧广告距离页首高度
	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 = parseInt(y)");
	eval("document.all." + layerName + ".style.posLeft = x");
	setTimeout("MoveLeftLayer('AdLayer1');", 20);
}
function MoveRightLayer(layerName) {
	var x = 5;
	var y = 20;// 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);
}

if(ad_left_show){
	if(ad_left_url==""){
		document.write("<div id=AdLayer1 style='position: absolute;visibility:hidden;z-index:1'><img src='" + ad_left + "' border='0'></div>");
	}else{
		document.write("<div id=AdLayer1 style='position: absolute;visibility:hidden;z-index:1'><a href='" + ad_left_url + "' target='_blank'><img src='" + ad_left + "' border='0'></a></div>");
	}
}
if(ad_right_show){
	if(ad_right_url==""){
		document.write("<div id=AdLayer2 style='position: absolute;visibility:hidden;z-index:1'><img src='" + ad_right + "' border='0'></div>");
	}else{
		document.write("<div id=AdLayer2 style='position: absolute;visibility:hidden;z-index:1'><a href='" + ad_right_url + "' target='_blank'><img src='" + ad_right + "' border='0'></a></div>");
	}
}
initEcAd()

// JavaScript Document