var showad = true;
var Toppx = 10;    //上端位置
var AdDivW = 100;   //宽度
var AdDivH = 220;   //高度
var PageWidth = 1024; //页面多少宽度象素下正好不出现左右滚动条
var MinScreenW = 1020; //显示广告的最小屏幕宽度象素 
var ClosebuttonHtml = '<table><tr height=15px><td><div align="right" style="position: absolute;top:0px;right:0px;margin:2px;padding:2px;z-index:2000;"><img src="images/close3.gif" onClick="javascript:window.hidead()" width="100" height="14" border="0" vspace="3" alt="关闭对联"></div></td></tr><tr><td>'//<a href="javascript:;" onclick="hidead()" style="color:red;text-decoration:none;font-size:12px;">关闭</a>
var AdContentHtml = '<div align="center" style="color:green;font-size:23pt;font-family:黑体;"><img src="duilian1.jpg" width="100"></div></td></tr></table>';
var AdContentHtml1 = '<div align="center" style="color:green;font-size:23pt;font-family:黑体;"><img src="duilian2.jpg" width="100"></div></td></tr></table>';
document.write ('<div id="Javascript.LeftDiv" style="position: absolute;border: 1px solid #ffffff;background-color:#ffffff;z-index:1000;width:'+AdDivW+'px;height:'+AdDivH+'px;top:-1000px;word-break:break-all;display:none;">'+ClosebuttonHtml+'<div>'+AdContentHtml+'</div></div>');
document.write ('<div id="Javascript.RightDiv" style="position: absolute;border: 1px solid #ffffff;background-color:#ffffff;z-index:1000;width:'+AdDivW+'px;height:'+AdDivH+'px;top:-1000px;word-break:break-all;display:none;">'+ClosebuttonHtml+'<div>'+AdContentHtml1+'</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.body.scrollTop//document.documentElement.scrollTop
document.getElementById("Javascript.LeftDiv").style.left=document.body.scrollLeft+Borderpx;
document.getElementById("Javascript.RightDiv").style.display="";
document.getElementById("Javascript.RightDiv").style.top=document.body.scrollTop+Toppx;//document.body.scrollTop//document.documentElement.scrollTop
document.getElementById("Javascript.RightDiv").style.left=document.body.scrollLeft+document.body.clientWidth-document.getElementById("Javascript.RightDiv").offsetWidth-Borderpx+0;
}
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;