function banner() {
};

banner = new banner();
number = 0;

// bannerArray
banner[number++] = "<a href='http://www.kqzyfj.com/click-2137139-10386440' target='_top'><img src='http://www.tqlkg.com/image-2137139-10386440' width='468' height='60' alt='' border='0'></a>"
// keep adding items here...


increment = Math.floor(Math.random() * number);

document.write(banner[increment]);