var how_many_ads =1;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
ad +=1;

if (ad==1)
{
        id="1";
        url="http://www.yili.com";
        alt="";
        img="ad/info-ad/yili768x60.gif";
	width="768";
	height="60";
	border="0";
}




if (img.substring(img.length-4, img.length) == ".swf")
{
document.write("<embed width="+ width +" height="+ height +" src="+ img +" wmode=opaque></embed>");
}
else
{  
document.write("<a href=" + url +  " target=" + "_blank" + ">");
document.write("<img src=" + img + " border=" + border + " width=" + width + " height=" + height + " alt=" + alt + " align=" + "center" + "></img>");
document.write("</a>");
}