#custnav {
  top: 190px;
  left: 176px;
  width: 640px;
  height: 401px;
  position: absolute;
  background: url(media/fax-customer-nav-bg.gif) top left no-repeat;
}

#undernav {
  top: 591px;
  left: 176px;
  width: 640px;
  height: 16px;
  position: absolute;
  background: url(media/fax-product-nav-under.gif) top left repeat-x;
}


/* opacity nav */

div.custOFF {
  width: 637px;
  height: 64px;
  background-color: 00b9e4;
}

div.custON {
  width: 637px; 
  height: 64px;
  background-color: #00b9e4;
  opacity:.30;filter: alpha(opacity=30); 
  -moz-opacity: 0.3;
}

div.cust30 {
  width: 637px;
  height: 64px;
  background-color: #00b9e4;
  opacity:.3;
  filter: alpha(opacity=30); 
  -moz-opacity: 0.3;
}

div.cust0 {
  width: 637px;
  height: 64px;
  background-color: #00b9e4;
  opacity:0;
  filter: alpha(opacity=0); 
  -moz-opacity: 0;
}

/* back buttons */

#back {
  margin: 0;
  padding: 0;
  height: 16px;
  list-style: none;
  overflow: hidden;
}

#back li{
  margin: 0; 
  padding: 0;
  width: 133px;
    list-style: none;
}

#back a {
  width: 133px;
  padding: 16px 0 0 0;
  overflow: hidden;
  height: 0px !important; 
  height /**/:16px; /* for IE5/Win only */
}

#back a:active, #back a.selected {
  background-position: 0 -16px;
}

#back a:hover {
  background-position: 0 -16px;  
}

#back1 a  {
  top: 154px;
  left: 14px;
  position: absolute;
  background: url(media/fax-customer-1-back.gif) top left no-repeat;
}

#back2 a  {
  top: 154px;
  left: 14px;
  position: absolute;
  background: url(media/fax-customer-2-back.gif) top left no-repeat;
}

#back3 a  {
  top: 154px;
  left: 14px;
  position: absolute;
  background: url(media/fax-customer-3-back.gif) top left no-repeat;
}

#back4 a  {
  top: 154px;
  left: 14px;
  position: absolute;
  background: url(media/fax-customer-4-back.gif) top left no-repeat;
}

#back5 a  {
  top: 154px;
  left: 14px;
  position: absolute;
  background: url(media/fax-customer-5-back.gif) top left no-repeat;
}

#back6 a  {
  top: 154px;
  left: 14px;
  position: absolute;
  background: url(media/fax-customer-6-back.gif) top left no-repeat;
}