var how_many_ads = 2;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;

ad +=1;
if (ad==1) {
txt="AirPortail";
url="http://www.airportail.com/";
alt="AirPortail";
banner="http://cocorico.com/clickcount/airportail.gif";
width=468;
height=60;
}
if (ad==2) {
txt="AirPortail";
url="http://www.airportail.com/";
alt="AirPortail";
banner="http://cocorico.com/clickcount/airportail.gif";
width=468;
height=60;
}
if (ad==3) {
txt="AirPortail";
url="http://www.airportail.com/";
alt="AirPortail";
banner="http://cocorico.com/clickcount/airportail.gif";
width=468;
height=60;
}
if (ad==4) {
txt="Thalasseo";
url="http://www.jdoqocy.com/click-2722773-10502100";
alt="Thalasseo";
banner="http://www.lduhtrp.net/image-2722773-10502100";
width=468;
height=60;
}
if (ad==5) {
txt="AirPortail";
url="http://www.airportail.com/";
alt="AirPortail";
banner="http://cocorico.com/clickcount/airportail.gif";
width=468;
height=60;
}
if (ad==6) {
txt="TheRomanticProject.com: Autre Chose";
url="http://theromanticproject.com/autrechose/";
alt="TheRomanticProject.com";
banner="http://cocorico.com/clickcount/autrechose.jpg";
width=468;
height=60;
}
if (ad==7) {
txt="AirPortail";
url="http://www.airportail.com/";
alt="AirPortail";
banner="http://cocorico.com/clickcount/airportail.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=1>');
document.write('</a>');
document.write('</center>');

<a href="http://www.jdoqocy.com/click-2722773-10502100" target="_top">
<img src="http://www.lduhtrp.net/image-2722773-10502100" width="468" height="60" alt="" border="0"/></a>