var how_many_ads = 10;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
ad +=1;

if (ad==1) {
url="c_inter1.shtml";
alt="";
banner="ran/v04.gif";
width="138";
height="140";
}

if (ad==2) {
url="c_praticaetica.shtml";
alt="";
banner="ran/v08.gif";
width="138";
height="140";
}
if (ad==3) {
url="c_psicologia1.shtml";
alt="";
banner="ran/vpsico1.gif";
width="138";
height="140";
}
if (ad==4) {
url="c_inter3.shtml";
alt="";
banner="ran/v16.gif";
width="138";
height="140";
}
if (ad==5) {
url="oficinas_classica.shtml";
alt="";
banner="ran/v20.gif";
width="138";
height="140";
}
if (ad==6) {
url="c_rh.shtml";
alt="";
banner="ran/v24.gif";
width="138";
height="140";
}
if (ad==7) {
url="c_karmica.shtml";
alt="";
banner="ran/v28.gif";
width="138";
height="140";
}

if (ad==8) {
url="c_metodologia.shtml";
alt="";
banner="ran/v32.gif";
width="138";
height="140";
}

if (ad==9) {
url="c_astroterapia.shtml";
alt="";
banner="ran/v36.gif";
width="138";
height="140";
}
if (ad==10) {
url="oficinas_metodohuber.shtml";
alt="";
banner="ran/v40.gif";
width="138";
height="140";
}