function banner() {
};
banner = new banner();
number = 0;
banner[number++] = "<center><a href='http://www.yenisafak.com.tr/diziler/basortu/index.html' target='_blank'><img src='http://www.yenisafak.com.tr/diziler/basortu/basortu00.jpg' border='0'></a></center>"
banner[number++] = "<center><a href='http://www.yenisafak.com.tr/diziler/kanser/index.html' target='_blank'><img src='http://www.yenisafak.com.tr/diziler/kanser/kanser00.jpg' border='0' class=kose></a></center>"
banner[number++] = "<center><a href='http://www.yenisafak.com.tr/diziler/cernobil/index.html' target='_blank'><img src='http://www.yenisafak.com.tr/diziler/cernobil/cernobil00.jpg' border='0'></a></center>"
increment = Math.floor(Math.random() * number);
document.write(banner[increment]);