Parte CSS
#caricamento {
width:100%;
height: 100%;
background-color:#FFFFFF;
position: absolute;
left: 1px;
top: 1px;
text-align: center;
font:Arial, Helvetica, sans-serif;
font-size:36px;
opacity:0.5;
}
Parte Javascript
<script type=" text/javascript" >
<!-- Created by: Robert Paulson : http://www.abrahamjoffe.com.au/ -->
<!--
document.write(' <div id=" caricamento" ><br><br><br><br><br><br><img src=" images/loading.gif" width=" 32" height=" 32" /><br><br>LOADING...</div>' );
window.onload=function(){
document.getElementById(" caricamento" ).style.display=" none" ;
}
// -->
</script>