var how_many_ads = 3;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
ad +=1;
if (ad==1) {
url="./media/Carolyn2.jpg";
alt="A Montage by Carolyn Z, 2006";
banner="./media/Carolyn3.jpg";
width="100";
height="100";
}
document.write('<a href=\"' + url + '\" target=\"_self\">');
document.write('<img src=\"' + banner + '\" width=')
document.write(width + ' height=' + height + ' ');
document.write('alt=\"' + alt + '\" title=\"' + alt + '\" border=0></a>');