var publi = 1;
var ahora = new Date()
var sec = ahora.getSeconds()
var ad = sec % publi;
ad +=1;
if (ad==1) {
url="http://www.seguridadenlared.org/";
alt="Seguridad en la Red";
banner="http://www.internautas.org/graficos/seguridadvi.gif";
width="468";
height="60";
}
document.write('<center>');
document.write('<table cellpadding=+"1" cellspacing=+"0" border=+"1" bgcolor=+"#333333">');
document.write('<td>');
document.write('<a href=\"' + url + '\" target=\"_blank\" onMouseOver=\"window.status=\'[ Publicidad ]\'\;return true\">');
document.write('<img src=\"' + banner + '\" width=')
document.write(width + ' height=' + height + ' ');
document.write('alt=\"' + alt + '\" border=0>');
document.write('</a>');
document.write('</td>');
document.write('</table>');
document.write('</center>');