function getAD(adName){
var begindate='2009-11-1';
var enddate='2010-11-1';
var date=new Date();
var now=date.getFullYear()+"/"+(date.getMonth()+1)+"/"+date.getDate();

if (dateDiff('D',now,enddate)>0 && dateDiff('D',begindate,now)>0){
imgUrl1="/ad/xiuyu/xiuyu.jpg"
imgLink1="http://www.shinesyell.cn/"
imgtext1="ÐãÓò½¡¿µÃÀÈÝÁ¬Ëø»ú¹¹"
}
}


function dateDiff(interval, date1, date2)
    {
        var objInterval = {'D' : 1000 * 60 * 60 * 24, 'H' : 1000 * 60 * 60, 'M' : 1000 * 60, 'S' : 1000, 'T' : 1};
        interval = interval.toUpperCase();
        var dt1 = Date.parse(date1.replace(/-/g, '/'));
        var dt2 = Date.parse(date2.replace(/-/g, '/'));
        try
        {
            return Math.round((dt2 - dt1) /objInterval.D );
        }
        catch (e)
        {
            return e.message;
        }
    }