.overlay {
    width: 100%;
    height: 100%;
    background-color: #CCC;
    opacity: 0.5;
    filter: alpha(opacity=50);
    -moz-opacity: 0.5;
    -khtml-opacity: 0.5;
    position: fixed;
    z-index: 9999;
    display: none;
}

.overlay2 {
    width: 100%;
    height: 100%;
    background-color: rgb(141, 13, 13);
    opacity: 0.7;
    filter: alpha(opacity=70);
    -moz-opacity: 0.7;
    -khtml-opacity: 0.7;
    position: fixed;
    z-index: 99;
    display: none;
}