.waitControlTemplate {
    display: none;
}
.waitControl{
    position: absolute;
    text-align: center;
    top: 0;
    left: 0;
    opacity: 0.3;
    filter: alpha(opacity=30);
    background-color: #ffffff;
    display: none;
    height:100%;
    width: 100%;
}

    .waitControl .waitControlImage {
        position: absolute;
        top: 50%;
        left: 50%;
        margin-top: -16px;
        margin-left: -16px;
    }