#pop{
position: absolute;
top: 200px;
left: 50% ;
width: 585px;
xheight:100px;
margin-left:-320px;
z-index: 999;
border:1px #999999 solid;
visibility: hidden;
background-color:#efefef;
text-align:left;
padding:5px;
xoverflow:auto;
}