while(true){
    aleatorio = Math.random();
    numero = Math.round(aleatorio * 7);

    if (numero == 0){
    imagen = "https://i280.photobucket.com/albums/kk174/crowl777/riderbanner.png";
    break;}

    if (numero == 1){
    imagen = "https://i280.photobucket.com/albums/kk174/crowl777/blackstarbanner.png";
    break;}

    if (numero == 2){
    imagen = "https://i280.photobucket.com/albums/kk174/crowl777/gilgameshbanner-1.png";
    break;}

    if (numero == 3){
    imagen = "https://i280.photobucket.com/albums/kk174/crowl777/misakibanner.png";
    break;}

    if (numero == 4){
    imagen = "https://i280.photobucket.com/albums/kk174/crowl777/minatobanner.png";
    break;}

    if (numero == 5){
    imagen = "https://i280.photobucket.com/albums/kk174/crowl777/acebanner.png";
    break;}

if (numero == 6){
    imagen = "https://i280.photobucket.com/albums/kk174/crowl777/Shibabanner.png";
    break;}

if (numero == 6){
    imagen = "https://i280.photobucket.com/albums/kk174/crowl777/freebanner.png";
    break;}

    }
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