var showad = true;
var Toppx = 265;//上端位置
var AdDivW = 100;//宽度
var AdDivH = 75;//高度
var PageWidth = 1100;//这个参数决定是否出现左右滚动条
var MinScreenW = 1040;	//显示广告的最小屏幕宽度象素
var ClosebuttonHtml = '<div align="right" style="position: absolute;top:0px;right:0px;margin:2px;padding:2px;z-index:2000;"></div>'
var AdContentHtml = '<div align="left"><img src=images/ad.gif width=111 height=104></img></div>';
document.write ('<div id="Javascript.LeftDiv" style="position: absolute;border: 1px solid #336699;background-color:#EEEEE2;z-index:1000;width:'+AdDivW+'px;height:'+AdDivH+'px;top:-1000px;word-break:break-all;display:none;">'+ClosebuttonHtml+'<div>'+AdContentHtml+'</div></div>');

function scall(){
	if(!showad){return;}
	if (window.screen.width<MinScreenW){
		alert("临时提示：\n\n显示器分辨率宽度小于"+MinScreenW+",不显示广告");
		showad = false;
		document.getElementById("Javascript.LeftDiv").style.display="none";
		document.getElementById("Javascript.RightDiv").style.display="none";
		return;
	}
	var Borderpx = ((window.screen.width-PageWidth)/2-AdDivW)/2;

	document.getElementById("Javascript.LeftDiv").style.display="";
	document.getElementById("Javascript.LeftDiv").style.top=document.body.scrollTop+Toppx;
	document.getElementById("Javascript.LeftDiv").style.left=document.body.scrollLeft+Borderpx;
}

function hidead()
{
	showad = false;
	document.getElementById("Javascript.LeftDiv").style.display="none";
	document.getElementById("Javascript.RightDiv").style.display="none";
}
window.onscroll=scall;
window.onresize=scall;
window.onload=scall;
//-->