.lngs img{
  opacity: 0.4;
  filter:alpha(opacity=40);
  filter:progid:DXImageTransform.Microsoft.Alpha(opacity=40);
  -moz-opacity: 0.4;
  -khtml-opacity: 0.4;
}

.act_flag img{
  opacity: 1.0;
  filter:progid:DXImageTransform.Microsoft.Alpha(opacity=100); 
  filter:alpha(opacity=100);
  -moz-opacity: 1.0;
  -khtml-opacity: 1.0;
}