<div id="pageIsLoading"
style="
position: absolute;
display: block;
padding-left: 44px;
padding-right: 37px;
width: auto;
height: 46px;
line-height: 46px;
border: 1px solid #ff0000;
color: #000000;
font-weight: bold;
background-color: #ffffff;
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.left = left+'px';
document.getElementById('pageIsLoading').style.top = top+'px';
</script>
<img src="путь_к_изображению" align="middle"> Загружается...
</div>
