function banner() { }; banner = new banner(); number = 0; // bannerArray banner[number++] = "

" banner[number++] = "

" banner[number++] = "

" banner[number++] = "

" banner[number++] = "

" banner[number++] = "

" // keep adding items here... increment = Math.floor(Math.random() * number); document.write(banner[increment]);