#popup {
  display: none;
  position: absolute;
  z-index: 1004;
  left: 0px;
  top: 0px;
  width: 100%;
  height: 100%;
  min-height: 750px;
  text-align: center;
}
#popup_bg {
  position: absolute;
  z-index: 1003;
  left: 0px;
  top: 0px;
  width: 100%;
  height: 100%;
  min-height: 750px;
  background-color: #000000;
  opacity: 0.6;
  -moz-opacity: 0.6;
  filter: alpha(opacity=60);
}
#popup_c {
  position: relative;
  z-index: 1005;
  top: 50px;
  width: 328px;
  height: auto;
  padding: 0px;
  margin-left: auto;
  margin-right: auto;
  color: #000000
}