function choices()
{
//elegir el numero de banner que se desean insertar, ej: 7
	this[0] = 1;

// PRIMER BANNER, Shopall Música234x76

this[1] = '<iframe allowtransparency="true" src="http://www.codigobarras.com/share-ht/jedis/ad_tpl.php?ic=2471&amp;r=7223" width="234" height="76" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" align="middle"></iframe>';


//si se pone arriba ej: 9 aqui añadir 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());