var AdContentHtml_left ="";
var AdContentHtml_right ="";
var AdContentHtml_left = '<div align="center" style="color:green;font-size:23pt;font-family:黑体;"><br><A HREF="#"><img src="upload/2021-09-23/1632365220.jpg" width="120" height="120" border=0></A></div>';
var showad = true;        //是否显示广告
var Toppx = 80;            //上端位置
var AdDivW = 120;        //宽度
var AdDivH = 120;        //高度
var PageWidth = 980;    //页面多少宽度象素下正好不出现左右滚动条
var MinScreenW = 1024;    //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;"><a href="javascript:;" onclick="hidead()" style="color:red;text-decoration:none;font-size:12px;"></a></div>'
var AdContentHtml = '<div align="center" style="color:green;font-size:23pt;font-family:黑体;"><br><br>广<br>告<br>内<br>容</div>';

document.write ('<div id="Javascript.LeftDiv" style="position: absolute;border: 0px solid #336699;z-index:1000;width:'+AdDivW+'px;height:'+AdDivH+'px;top:-1000px;word-break:break-all;display:none;">'+ClosebuttonHtml+'<div>'+AdContentHtml_left+'</div></div>');

document.write ('<div id="Javascript.RightDiv" style="position: absolute;border: 0px solid #336699;z-index:1000;width:'+AdDivW+'px;height:'+AdDivH+'px;top:-1000px;word-break:break-all;display:none;">'+ClosebuttonHtml+'<div>'+AdContentHtml_right+'</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.documentElement.scrollTop+Toppx)+"px";
    document.getElementById("Javascript.LeftDiv").style.left=(document.documentElement.scrollLeft+Borderpx)+"px";
    document.getElementById("Javascript.RightDiv").style.display="";
    document.getElementById("Javascript.RightDiv").style.top=(document.documentElement.scrollTop+Toppx)+"px";
    document.getElementById("Javascript.RightDiv").style.left=(document.documentElement.scrollLeft+document.documentElement.clientWidth-document.getElementById("Javascript.RightDiv").offsetWidth-Borderpx)+"px";
}

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;