ciao io ho ftt questo menu a tendina però non lo riesco a mettere in posizione centrale nella pagina
codice:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>barra</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css">
#olt{
align:center;
}
#mymenu{
 position: fixed;
 float: center;
 margin:0;
 align:center;
 }
 ul#mymenu{
      font: 70%/1.5 Verdena,Tahoma,sans-serif;
      color: #fff;
      background: #000000;
      width:1245px;
      height:30px;
	  margin-right:0px;
      margin-left:0px;
      margin-top:0px;
      line-height:30px;
	 float: center;
      }
      ul#mymenu,ul#mymenu li,ul#mymenu ul,ul#mymenu ul li{
      margin:0;
      padding:0;
      list-style-type:none;
	  float: center;
      }
      ul#mymenu a{
      display:block;
      padding: 0 15px;
      text-decoration: none;
      color:#FFF;
      }
      ul#mymenu li{
      float: left;
      position: relative;
      }
      ul#mymenu li li{
      float: none;
      line-height: 22px;
      width:200px;
      display:block !important;
      display: inline;
      }
      ul#mymenu ul{
      position:absolute;
      top: 25px;
      left: -9999px;
      width: 12em;
      background: #fff;
      color: #4589FA;
      }
      ul#mymenu ul{
      padding: 7px 0;
      border: 1px solid #4589FA;
      width:200px;
      }
      ul#mymenu ul,ul#mymenu li li a{
      background-color: #FFF;
      color: #4589FA;
      }
      ul#mymenu li:hover,ul#mymenu a:hover{
      background-color: #4589FA;
      color: #FFF;
      }
      ul#mymenu li:hover ul,ul#mymenu li.sfhover ul{
      left: -1px;z-index: 100;
      }   </style>
</head>

<body>
<div id="olt">
<ul id="mymenu" align="center">
      [*]Home<ul>[*]<a href="index.php" target="_blank">
   Home</a>[*]<a href="" target="_blank">
   Chi siamo</a>[*]<a href="" target="_blank">
  Galleria</a>[*]<a href="" target="_blank">
  Archivio</a>[/list]
      [*]Municipalit&agrave I-II<ul>[*]<a href="municipalita/Chiaia.php" target="_blank">
   Chiaia</a>[*]<a href="municipalita/Posillipo.php" target="_blank">
   Posillipo</a>[*]<a href="municipalita/San%20Ferdinando.php" target="_blank">
   San Ferdinando</a>[*]<a href="municipalita/Avvocata.php" target="_blank">
  Avvocata</a>[*]<a href="municipalita/Montecalvario.php" target="_blank">
   Montecalvario</a>[*]<a href="municipalita/Pendino.php" target="_blank">
   Pendino</a>[*]<a href="municipalita/Porto.php" target="_blank">
   Porto</a>[*]<a href="municipalita/Mercato.php" target="_blank">
  Mercato</a>[*]<a href="municipalita/San%20Giuseppe.php" target="_blank">
   San Giuseppe</a>[/list]
      [*]Municipalit&agrave III-IV<ul>[*]<a href="municipalita/Stella.php" target="_blank">
   Stella</a>[*]<a href="municipalita/San%20Carlo%20all%27arena.php" target="_blank">
   San Carlo all'arena</a>[*]<a href="municipalita/San%20Lorenzo.php" target="_blank">
   San Lorenzo</a>[*]<a href="municipalita/Vicaria.php" target="_blank">
   Vicaria</a>[*]<a href="municipalita/Poggioreale.php" target="_blank">
   Poggioreale</a>[*]<a href="municipalita/Zona%20Industriale.php" target="_blank">
   Zona Industriale</a>[/list]
   [*]Municipalit&agrave V-VI<ul>[*]<a href="municipalita/Vomero.php" target="_blank">
   Vomero</a>[*]<a href="municipalita/Arenella.php" target="_blank">
   Arenella</a>[*]<a href="municipalita/Ponticelli.php" target="_blank">
   Ponticelli</a>[*]<a href="municipalita/Barra.php" target="_blank">
  Barra</a>
[*]<a href="municipalita/San%20Giovanni%20a%20Teduccio.php" target="_blank">
   San Giovanni a Teduccio</a>[/list]
	  
	[*]Municipalit&agrave VII-VIII<ul>[*]<a href="municipalita/Miano.php" target="_blank">
   Miano</a>[*]<a href="municipalita/Secondigliano.php" target="_blank">
   Secondigliano</a>[*]<a href="municipalita/San%20Pietro%20a%20Patierno.php" target="_blank">
  San Pietro a Patierno</a>[*]<a href="municipalita/Piscinola.php" target="_blank">
  Piscinola</a>[*]<a href="municipalita/Marianella.php" target="_blank">
   Marianella</a>[*]<a href="municipalita/Scampia.php" target="_blank">
   Scampia</a>[*]<a href="municipalita/Chiaiano.php" target="_blank">
   Chiaiano</a>[/list]
	  
	[*]Municipalit&agrave IX-X<ul>[*]<a href="municipalita/Soccavo.php" target="_blank">
   Soccavo</a>[*]<a href="municipalita/Pianura.php" target="_blank">
   Pianura</a>[*]<a href="municipalita/Bagnoli.php" target="_blank">
   Bagnoli</a>[*]<a href="municipalita/Fuorigrotta.php" target="_blank">
 Fuorigrotta</a>[/list]
		<form action="search.php" method="get" target="_blank">
  <input type="text" name="q"/>
        <INPUT TYPE=IMAGE SRC="Immagine/cerca.png"  ALIGN=ABSMIDDLE width="29" height="28">
		</form>[/list]
   </div>    
</body>
</html>
come faccio???