function choices()
{
//elegir el numero de banner que se desean insertar, ej: 6
this[0] = 1;
// PRIMER BANNER, Trad. 120x60 Rota
this[1] = '<script type="text/javascript" src="http://impes.tradedoubler.com/imp?type(js)pool(26788)a(287784)" charset="ISO-8859-1"></script>';
this[2] ='<script type="text/javascript" src="http://zbox.zanox.com/scripts/adbox_content.js"></script><script type="text/javascript">CallAdBoxTracking(319302, 2122136900, 0, 120, 60, "B0E0E6", "FFFFFF", "000000", "336699", "333333", "0", "", true);</script>';

//si se pone arriba ej: 7 aqui aņadir this[7]=' codigo ';
}
function popUpBanner(list)
{
var today = new Date();
var choiceInstance = new choices();
var Banner = choiceInstance[(today.getSeconds() % choiceInstance[0]) + 1];
}
function grabBanner()
{
var today = new Date();
var choiceInstance = new choices();
var Banner = choiceInstance[(today.getSeconds() % choiceInstance[0]) + 1];
return Banner;
}
document.writeln(grabBanner());