#wf_popup {
    position: absolute;
    z-index: 3000;
}
#wf_darkening_overlay {
    width: 100%;
    background-color: #000000;
    position: absolute;
    left: 0px;
    top: 0px;         
    filter: alpha(opacity = 70);
    opacity: .70;
    -moz-opacity: .70;
    -khtml-opacity: .70;        
    z-index: 2000;   
}