var astrono = "<table width='751' height='423' border='0' cellpadding='0' cellspacing='0'><tr><td height='28'> </td></tr>";
    astrono += "<tr><td height='20'><center><font color='#802020' style='font-size:15px'> </font></center></td></tr>";

    astrono += "<tr><td height='30'><center><font color='#802020' style='font-size:15px'><b>La mission KEO</b></font></center></td></tr>";    astrono += "<tr><td height='95'><center><a href='links/keo/index.php' target='_parent'><img src='links/keo/imgg5.jpeg' alt='Keo' border=0></a></center></td></tr>";
    astrono += "<tr><td height='30'><center><font color='#802020' style='font-size:15px'>Chacun de nous est invité à rédiger un message à destination de nos lointains descendants.</font></center></td></tr>";
    astrono += "<tr><td height='30'><center><font color='#802020' style='font-size:15px'>Tous les messages seront envoyés dans l'espace et reviendront sur terre dans 50.000 ans.</font></center></td></tr>";

    astrono += "<tr><td height='300'></td></tr></table>";

  astrono += "<div id='entrer_astrono' begin='3' style='position:absolute; left:670px; top:400px; width:30px; height:20px; z-index:0;";
  astrono += "visibility:visible; behavior:url(#default#time2)'>";
  astrono += "<a href='links/keo/index.php' target='_parent'><font color='#502020' style='font-size:15px'>Entrer</font></a></div>";