#darkBackground {
background-color:#000000;
display:none;
height:600px;
left:0pt;
opacity:0.8;
position:absolute;
top:0pt;
width:100%;
z-index:89;
}

.darkenBackground {
background-color:#000000;
background-repeat:repeat;
height:100%;
left:0px;
opacity:0.7;
position:fixed;
top:0px;
width:100%;
z-index:89;
}