a.opacidad img {       
    filter:alpha(opacity=60);
    -moz-opacity: 0.6;
    opacity: 0.6;
    -khtml-opacity: 0.6;
    -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=60)"; /*Internet Explorer 8*/}
 a.opacidad:hover img {
	filter:alpha(opacity=100);
	-moz-opacity: 1.0;
	opacity: 1.0;
	-khtml-opacity: 1.0;
    -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)"; /*Internet Explorer 8*/}
.entry img {      
    filter:alpha(opacity=60);        
    -moz-opacity: 0.6;
    opacity: 0.6;
    -khtml-opacity: 0.6;
    -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)"; /*Internet Explorer 8*/
}
.entry:hover img {       
	filter:alpha(opacity=100);
	-moz-opacity: 1.0;
	opacity: 1.0;
	-khtml-opacity: 1.0;
	-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=100)"; /*Internet Explorer 8*/
}