var ad_count = 2;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % ad_count;
ad +=1;
if (ad==1) {
url="http://shop.ihen.org/";
alt="IHEN Shopping Mall";
banner="http://www.ihen.org/images/ads/ihen/shoppingmall_100x200.gif";
width="100";
height="200";
}
if (ad==2) {
url="http://www.ihen.org/links/";
alt="IHEN's Links Database";
banner="http://www.ihen.org/images/ads/HotLinksButton.0301.85x34.gif";
width="85";
height="34";
}
document.write('<center>');
document.write('<a href="' + url + '" target="_blank">');
document.write('<img src="' + banner + '" width='+ width + ' height=' + height + ' alt="' + alt + '" border=0><br>');
document.write('</center>');