.ie #top {
  behavior: url(../PIE.php);
}
.ie #bottom nav {
  behavior: url(../PIE.php);
}
.ie #bottom address {
  behavior: url(../PIE.php);
}

.cf {
  *zoom: 1;
}
.cf:after,
.cf:before {
  content: '';
  display: table;
}
.cf:after {
  clear: both;
}