a.ltink img, a.ltink:visited img, a.ltink:link img
{ 
  filter: alpha(opacity=50);
  border: 0px;
  moz-opacity:.50;
  opacity:.50;
}

a.ltink:hover img
{ 
  filter: alpha(opacity=100);
  moz-opacity:1;
  opacity:1;
 
}