//creo array de imágenes 
array_imagen = new Array(6) 
array_imagen[0] = new Image(640,426) 
array_imagen[0].src = "images/casas/0.jpg" 
array_imagen[1] = new Image(640,426) 
array_imagen[1].src = "images/casas/1.jpg" 
array_imagen[2] = new Image(640,426) 
array_imagen[2].src = "images/casas/2.jpg" 
array_imagen[3] = new Image(640,426) 
array_imagen[3].src = "images/casas/3.jpg" 
array_imagen[4] = new Image(640,426) 
array_imagen[4].src = "images/casas/4.jpg" 
array_imagen[5] = new Image(640,426) 
array_imagen[5].src = "images/casas/5.jpg" 
array_imagen[6] = new Image(640,426) 
array_imagen[6].src = "images/casas/6.jpg" 
array_imagen[7] = new Image(640,426) 
array_imagen[7].src = "images/casas/7.jpg" 
array_imagen[8] = new Image(640,426) 
array_imagen[8].src = "images/casas/8.jpg" 
array_imagen[9] = new Image(640,426) 
array_imagen[9].src = "images/casas/9.jpg" 
array_imagen[10] = new Image(640,426) 
array_imagen[10].src = "images/casas/10.jpg" 
array_imagen[11] = new Image(640,426) 
array_imagen[11].src = "images/casas/11.jpg" 
array_imagen[12] = new Image(640,426) 
array_imagen[12].src = "images/casas/12.jpg" 
array_imagen[13] = new Image(640,426) 
array_imagen[13].src = "images/casas/13.jpg" 
array_imagen[14] = new Image(640,426) 
array_imagen[14].src = "images/casas/14.jpg" 




//variable para llevar la cuenta de la imagen siguiente 
contador = 0 

//función para rotar el banner 
function alternar_banner2(){ 
    window.document["banner2"].src = array_imagen[contador].src 

    contador ++ 
    contador = contador % array_imagen.length 
    setTimeout("alternar_banner2()",3000) 
}