function affiche_pub(nom_pub){  if (nom_pub != "vertic")  {    num_pub=Math.abs(Math.round(Math.random()*10-9));    document.write('<IFRAME SRC="http://www.sitercl.com/Pub/pub_');    document.write(num_pub);    document.write('.htm" width="100%" height="250" frameborder="0" border="0" MARGINWIDTH="0" MARGINHEIGHT="0" SCROLLING="no"></IFRAME>');  }  else  {    document.write('<IFRAME SRC="http://www.sitercl.com/Pub/pub_v0.htm"');    document.write(' width="100%" height="650" frameborder="0" border="0" MARGINWIDTH="0" MARGINHEIGHT="0" SCROLLING="no"></IFRAME>');  }  return;}