#darkbg
{
display:none;
position: fixed; 
top:0;
left:0;
width:100%;
height:100%;
z-index:1000;
text-align:center;
font-family:Arial,Helvetica,sans-serif;
font-size:20px;
color:#000000;
background-color: #000000;
filter:alpha(opacity=50);
-moz-opacity:0.5;
opacity: 0.5;
}

#darkbglogin
{
display:none;
text-align:left;
font-family:Arial,Helvetica,sans-serif;
font-size:14px;
color:#000000;
position:fixed;
top:120px;
left:50%;
padding:12px;
margin-left:-230px;
width:460px;
height:200px;
background-color:#ffffff;
z-index:1001;
filter:alpha(opacity=100);
-moz-opacity:1;
opacity: 1;
}