function scrollImg(){  
    var posX,posY;  
    if (window.innerHeight) {  
        posX = window.pageXOffset;  
        posY = window.pageYOffset;  
    }  
    else if (document.documentElement && document.documentElement.scrollTop) {  
        posX = document.documentElement.scrollLeft;  
        posY = document.documentElement.scrollTop;  
    }  
    else if (document.body) {  
        posX = document.body.scrollLeft;  
        posY = document.body.scrollTop;  
    }  

    var Rightad=document.getElementById("Rightad");  
    Rightad.style.top=(posY+350)+"px";  
    Rightad.style.right=(posX+20)+"px";  
    setTimeout("scrollImg()",100);  
}  

document.write("<div id='Rightad' style='position:absolute;background:#eeeeee;width:120px;height:60px;'><a href='http://gamelist.bbgsite.com/io/index/id/1707.shtml'><img src='http://images.bbgsite.com/www/gamelist/gamelist_120X60.gif'  width='120' height='60' /></a></div>");

scrollImg();