#pageloader {
    background: rgba( 255, 255, 255, 0.5 );
    display: none;
    height: 100%;
    position: fixed;
    width: 100%;
    z-index: 9999;
}
#pageloader img {
    left: 50%;
    margin-left: -32px;
    margin-top: -32px;
    position: absolute;
    top: 50%;
}

#pageloader_usr {
    background: rgba( 255, 255, 255, 0.5 );
    display: none;
    height: 100%;
    position: fixed;
    width: 100%;
    z-index: 9999;
}
#pageloader_usr img {
    left: 50%;
    margin-left: -32px;
    margin-top: -32px;
    position: absolute;
    top: 50%;
}