#overlay {
     visibility: hidden;
     position: absolute;
     left: 0px;
     top: 0px;
    xwidth:100%;
    xheight:100%;
     text-align:center;
     z-index: 1000;
     background-color:#444;
     opacity: 0.9;
     xfilter:alpha(opacity=80);
    -xmoz-opacity: 0.8;
}

#overlay div {
     width:300px;
     margin: 100px auto;
     background-color: #fff;
     border:1px solid #000;
     padding:0px;
     text-align:center;
}


#overlay2 {
     visibility: hidden;
     position: absolute;
     left: 0px;
     top: 0px;
    xwidth:100%;
    xheight:100%;
     text-align:center;
     z-index: 1000;
     background-color:#999;
     opacity: 1.0;
     xfilter:alpha(opacity=80);
    -xmoz-opacity: 0.09;
}

#overlay2 div {
     width:600px;
     margin: 100px auto;
     background-color: #fff;
     border:1px solid #000;
     padding:0px;
     opacity: 1.0;
     text-align:left;
}

#overlay3 {
     visibility: hidden;
     position: absolute;
     left: 0px;
     top: 0px;
    xwidth:100%;
    xheight:100%;
     text-align:center;
     z-index: 1000;
     background-color:#444;
     opacity: 0.9;
     xfilter:alpha(opacity=80);
    -xmoz-opacity: 0.8;
}

#overlay3 div {
    width:300px;
     margin: 100px auto;
     background-color: #fff;
     border:1px solid #000;
     padding:0px;
     text-align:left;
}