<script type="text/javascript">      
function hideLoading() {      
document.getElementById('pageIsLoading').style. display = 'none';      
}      
</script>

<div id="pageIsLoading"      
style="      
position: absolute;      
display: block;      
padding-left: 44px;      
padding-right: 12px;      
width: auto;      
height: 46px;      
line-height: 46px;      
border: 1px solid #890000;      
color: #000000;      
font-weight: bold;      
background-color: #e5e5e5;      
background-image: url(http://www.абсолютный_путь_к_папке_images/loadingcircle.gif);      
background-position: 6px center;      
background-repeat: no-repeat;">      
<script type="text/javascript">      
if (typeof window_width == 'undefined' || typeof window_height == 'undefined') {      
var window_width;      
var window_height;      
if( typeof( window.innerWidth ) == 'number' ) {      
window_width = window.innerWidth;      
window_height = window.innerHeight;      
} else if( document.documentElement &&      
( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {      
window_width = document.documentElement.clientWidth;      
window_height = document.documentElement.clientHeight;      
} else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {      
window_width = document.body.clientWidth;      
window_height = document.body.clientHeight;      
}      
}      
var left = Math.round((window_width - 200) / 2);      
var top = Math.round(((window_height - 46) / 3) + 46);      
document.getElementById('pageIsLoading').style.l eft = left+'px';      
document.getElementById('pageIsLoading').style.t op = top+'px';      
</script>      
Загружается... Ждите...      
</div>

<script type="text/javascript">      
if (window.addEventListener) {      
window.addEventListener('load', hideLoading, false);      
} else if (window.attachEvent) {      
var r = window.attachEvent("onload", hideLoading);      
} else {      
hideLoading();      
}      
</script>