#backgroundPopup{
display:none;
position:fixed;
_position:absolute; /* hack for internet explorer 6*/
height:100%;
width:100%;
top:0;
left:0;
background:#000000;
border:1px solid #cecece;
z-index:1;
}
#tileCalculator{
display:none;
position:relative;
height:384px;
margin:auto;
width:508px;
background:#FFFFFF;
border:2px solid #cecece;
z-index:2;
padding:12px;
font-size:13px;
}