Script Préload (à modifier)

<!-- DEBUT DU SCRIPT -->
<style type="text/css">
#cache {
  visibility:hidden;
  background-color: #000000;
  margin-top: 4%;
}

#fond
{
  position:absolute;
  top:0%;
  left:18%;
  width: 800px; 
  height: 600px;
  visibility:visible;
  background-color: #000000;
  filter:alpha(opacity=70);
  -Moz-Opacity:0.7;
  opacity:0.7;
  text-align:center;
}

.li
{
  color: #ffffff;
}
</style>
<div id="fond">
  <div id="cache">
    <FONT FACE="Verdana" SIZE=3 COLOR=#FFFFFF>
    <b>
    <center>
      <br /><br />Chargement des images en cours ...<br /><br />
      Merci de patienter<br /><br /><br />
      [ <a onclick='cach.visibility = "hidden";' class="li">
      <b>Fermer</b></a> ]<br />
    </center>
    </b>
    </FONT>
  </div>
</div>
<script language="JavaScript">
var nava = (document.layers);
var dom = (document.getElementById);
var iex = (document.all);
if (nava) { cach = document.cache;}
else if (dom) { cach = document.getElementById("cache").style;}
else if (iex) { cach = cache.style;}
else { cach = document.getElementById("cache").style; back = fond.style;}
if (nava) { back = document.fond;}
else if (dom) { back = document.getElementById("fond").style;}
else if (iex) { back = fond.style;}
else { back = document.getElementById("fond").style;}

cach.visibility = "visible";
back.visibility = "visible";

function cacheOff()
    {
    cach.visibility = "hidden";
    back.visibility = "hidden";
    }
window.onload = cacheOff
</script>
<!-- FIN DU SCRIPT -->

left:18%;