var showad = true;
var Bottompx = 280;            //上端位置
var AdDivW = 100;        //宽度（图片）
var AdDivH = 100;        //高度（图片）
var PageWidth = 1010;    //页面多少宽度象素下正好不出现左右滚动条
var MinScreenW=700;    //显示广告的最小屏幕宽度象素

var ClosebuttonHtml = "";
var AdContentHtml = "<div><a href=\"http://www.chinashipbuild-expo.com/2009show.html\"  target=_blank><img border=\"0\" src=\"http://www.chinashipbuild-expo.com/images/report.gif\" alt=\"\" /></a></div>";
document.write ("<div id=\"Javascript.RightDiv\" style=\"position: absolute;border: 1px solid #d0eaf5;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){
        
        showad = false;
        document.getElementById("Javascript.RightDiv").style.display="none";
        return;
    }
    var Borderpx = ((window.screen.width-PageWidth)/2-AdDivW)/2;

    document.getElementById("Javascript.RightDiv").style.display="";
    document.getElementById("Javascript.RightDiv").style.top=document.documentElement.scrollTop+document.documentElement.clientHeight-AdDivH-Bottompx;
    document.getElementById("Javascript.RightDiv").style.right="22px";
}

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