div#loading-image {
    position: fixed;
    z-index: 1000;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    background: rgba(255, 255, 255, .8)
                url('../images/ajax-loader.gif')
                50% 50%
                no-repeat;
}

body.loading { cursor: progress !important; }
body.loading a { cursor: progress !important; }