function choices()
{
//elegir el numero de banner que se desean insertar, ej: 7
	this[0] = 2;
// PRIMER BANNER, Netfilia 300x250 Rota
this[1] = '<script type="text/javascript" src="http://imp.tradedoubler.com/imp?type(js)pool(38928)a(287784)" charset="ISO-8859-1"></script>';
// TERCER BANNER, Tradedoubler 300x250 Rota
this[2] = '<script type="text/javascript" src="http://imp.tradedoubler.com/imp?type(js)pool(236587)a(287784)" charset="ISO-8859-1"></script>';
//si se pone arriba ej: 9 aqui aņadir this[9]=' 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());