document.write('<! Autor deste javascript: Paulo Henriques, parh@clix.pt>');
<!-- Begin
var how_many_ads = 30;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
ad +=1;
if (ad==1) {
txt="";
alt="";
banner="indmain/indmain01.jpg";
width="637";
height="203";
}
if (ad==2) {
txt="";
alt="";
banner="indmain/indmain02.jpg";
width="637";
height="203";
}
if (ad==3) {
txt="";
alt="";
banner="indmain/indmain03.jpg";
width="637";
height="203";
}
if (ad==4) {
txt="";
alt="";
banner="indmain/indmain04.jpg";
width="637";
height="203";
}
if (ad==5) {
txt="";
alt="";
banner="indmain/indmain05.jpg";
width="637";
height="203";
}
if (ad==6) {
txt="";
alt="";
banner="indmain/indmain06.jpg";
width="637";
height="203";
}
if (ad==7) {
txt="";
alt="";
banner="indmain/indmain07.jpg";
width="637";
height="203";
}
if (ad==8) {
txt="";
alt="";
banner="indmain/indmain08.jpg";
width="637";
height="203";
}
if (ad==9) {
txt="";
alt="";
banner="indmain/indmain09.jpg";
width="637";
height="203";
}
if (ad==10) {
txt="";
alt="";
banner="indmain/indmain10.jpg";
width="637";
height="203";
}
if (ad==11) {
txt="";
alt="";
banner="indmain/indmain11.jpg";
width="637";
height="203";
}
if (ad==12) {
txt="";
alt="";
banner="indmain/indmain12.jpg";
width="637";
height="203";
}
if (ad==13) {
txt="";
alt="";
banner="indmain/indmain13.jpg";
width="637";
height="203";
}
if (ad==14) {
txt="";
alt="";
banner="indmain/indmain14.jpg";
width="637";
height="203";
}
if (ad==15) {
txt="";
alt="";
banner="indmain/indmain15.jpg";
width="637";
height="203";
}
if (ad==16) {
txt="";
alt="";
banner="indmain/indmain16.jpg";
width="637";
height="203";
}
if (ad==17) {
txt="";
alt="";
banner="indmain/indmain17.jpg";
width="637";
height="203";
}
if (ad==18) {
txt="";
alt="";
banner="indmain/indmain18.jpg";
width="637";
height="203";
}
if (ad==19) {
txt="";
alt="";
banner="indmain/indmain19.jpg";
width="637";
height="203";
}
if (ad==20) {
txt="";
alt="";
banner="indmain/indmain20.jpg";
width="637";
height="203";
}
if (ad==21) {
txt="";
alt="";
banner="indmain/indmain21.jpg";
width="637";
height="203";
}
if (ad==22) {
txt="";
alt="";
banner="indmain/indmain22.jpg";
width="637";
height="203";
}
if (ad==23) {
txt="";
alt="";
banner="indmain/indmain23.jpg";
width="637";
height="203";
}
if (ad==24) {
txt="";
alt="";
banner="indmain/indmain24.jpg";
width="637";
height="203";
}
if (ad==25) {
txt="";
alt="";
banner="indmain/indmain25.jpg";
width="637";
height="203";
}
if (ad==26) {
txt="";
alt="";
banner="indmain/indmain26.jpg";
width="637";
height="203";
}
if (ad==27) {
txt="";
alt="";
banner="indmain/indmain27.jpg";
width="637";
height="203";
}
if (ad==28) {
txt="";
alt="";
banner="indmain/indmain27.jpg";
width="637";
height="203";
}
if (ad==29) {
txt="";
alt="";
banner="indmain/indmain27.jpg";
width="637";
height="203";
}
if (ad==30) {
txt="";
alt="";
banner="indmain/indmain27.jpg";
width="637";
height="203";
}
document.write('<left>');
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>');
// End -->;