var banner = new Array();
var SeptiembreM= new Array();
hoy = new Date();

banner[0]='http://i45.tinypic.com/2j3fof6.jpg';
banner[1]='http://img641.imageshack.us/img641/6936/mrhouseverde.png';
banner[2]='http://i29.tinypic.com/ifwsus.jpg';
banner[3]='http://img836.imageshack.us/img836/9669/comicmrhl.png';


document.getElementById('logo').firstChild.src= banner[Math.floor(Math.random()*banner.length)];