div#frameWrapper
{
background-image: url("http://www.ravi6.rsitez.com//templates_new/blue/inc/loading.gif");
background-repeat:no-repeat;
background-position:center;
height: 170px;
width: 520px;
}

div#frameWrapper2
{
background-image: none;
height: 170px;
width: 520px;
}

iframe#frame
{
height: 170px;
width: 520px;
visibility: hidden;
overflow: fixed;
border-width: 0;
}
</style>
<script type="text/javascript">
function xonload()
{
document.getElementById('frameWrapper').id = 'frameWrapper2';
document.getElementById('frame').style.visibility = 'visible';
}