banners = new Array(3);
banners[0] = "
The Whitest Boy Alive
Dreams (importado)
72,90 no Submarino ";
banners[1] = "
Antony and the Johnsons
I Am a Bird Now (importado)
54,90 no Submarino";
banners[2] = "
Tom Zé
Nave Maria
9,90 no Submarino";
//calculate a random index
index = Math.floor(Math.random() * banners.length);
//display the banner
document.write(banners[index]);