function choices()
{
//--------------------------------------------google--------------------------------
google_ad_client = "pub-4029711548653795";
/* trabajo_general_468x60 */
google_ad_slot = "2167686283";
google_ad_width = 468;
google_ad_height = 60;
//--------------------------------------------google--------------------------------

//elegir el numero de banner que se desean insertar, ej: 6
	this[0] = 3;
//Tradedoubler
this[1] = '<script type="text/javascript" src="http://impes.tradedoubler.com/imp?type(js)pool(7633)a(287784)" charset="ISO-8859-1"></script>';
// codigobarras
this[2] = '<iframe allowtransparency="true"'+'src="http://www.codigobarras.com/share-ht/jedis/ad_tpl.php?ic=2471&amp;r=13885"'+' width="468" height="60" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" align="middle">'+'</iframe>';
//Tradedoubler
this[3] = '<script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script>';

/*//Netfilia 460x60 Rota
this[4] = '<script type="text/javascript"  src="http://www.netfilia.com/contenidos/insert_html.html?cmf=1990&con_capa=1&contenido=468x60&web=1317&p=1836722904&id=hioXfnpIzCke2"></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());