a.linkopacity img {
filter:alpha(opacity=20); 
-moz-opacity: 0.5; 
opacity: 0.5;}

a.linkopacity:hover img {
filter:alpha(opacity=100);   
-moz-opacity: 1.0;   
opacity: 1.0;}

a.linkopacity:active img {
filter:alpha(opacity=100);   
-moz-opacity: 1.0;   
opacity: 1.0;}