var how_many_ads = 3;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
ad +=1;


if (ad==1) {
txt="";
url="http://integridadsion.com/biblia-online/";
alt="Lee la Biblia en linea";
banner="http://integridadsion.com/imagenes/Biblie_banner780x60.jpg";
width="468";
height="60";
}
if (ad==2) {
txt="";
url="http://integridadsion.com/videos";
alt="Videos Cristianos mas de 150 videos completamente Cristianos!";
banner="http://integridadsion.com/imagenes/Videos_banner780x60.gif";
width="468";
height="60";
}
if (ad==3) {
txt="";
url="http://integridadsion.com/4-pasos-a-jesus/";
alt="Toma un momento para saber por que el es tu camino!";
banner="http://integridadsion.com/imagenes/4pasos780x60.gif";
width="468";
height="60";
}

document.write('<center>');
document.write('<a href=\"' + url + '\" target=\"_top\">');
document.write('<img src=\"' + banner + '\" width=')
document.write(width + ' height=' + height + ' ');
document.write('alt=\"' + alt + '\" border=0><br>');
document.write('<small>' + txt + '</small></a>');
document.write('</center>');