function TopAd()
{
    var strTopAd="";

   
        strTopAd="<div id=adimage style=\"width:970px; margin:0 auto;\">"+
                    "<div id=adBig><a href=\"http://bank.6677bank.com\" "+ 
                    "target=_blank><img style=\"width:970px;\"+ title=数银在线 "+
                    "src=\"./images/index821/big.jpg\" "+
                    "border=0></A></div>"+
                    "<div id=adSmall style=\"display: none\"><a "+
                    "href=\"http://www.6677bank.com/bank/index.html\" target=_blank><img "+
                    "title=数银在线 "+
                    "src=\"./images/index821/small.jpg\" "+
                    "border=0></A></div></div>";

    strTopAd+="<div style=\"height:0px; clear:both;overflow:hidden\"></div>";
    return strTopAd;
}
document.write(TopAd());
$(function(){
    setTimeout("showImage();",2000);

});
function showImage()
{
    $("#adBig").slideUp(1000,function(){$("#adSmall").slideDown(1000);});
}