var how_many_ads = 0;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
ad +=1;

if (ad==1)
{
txt="Publicidad: Humana Vision";
url="http://www.ecuadorlaser.com/articulos/detalle_articulo.asp?IDART=62";
alt="Publicidad: Humana Vision";
banner="/data/recursos/banners/viter_468_feb07.gif";
width="468";
height="60";

document.write('<div name=publicidad class=\"banner\" align=\"left\"><span class=\"texto9\">PUBLICIDAD</span><img src=\"/data/images/bullets/trianguloPublicidad.gif\" width=\"9\" height=\"10\"><div align=\"center\">')
document.write('<a href=\"' + url + '\" target=\"_blank\" onClick="javascript:urchinTracker(\'/banners/humanavision/full_sup_ampliadas_mas_visitadas_32788-r-dr_viteri01/\');">');
document.write('<img src=\"' + banner + '\" width=');
document.write(width + ' height=' + height + ' ');
document.write('alt=\"' + alt + '\" border=0></a>');
document.write('</div></div>');
}