.r_transparent_class {
	filter:alpha(opacity=60);
	-moz-opacity:0.6;
	-khtml-opacity: 0.6;
	opacity: 0.6;
}
.r_transparent_class:hover {
	filter:alpha(opacity=100);
	-moz-opacity:1.0;
	-khtml-opacity: 1.0;
	opacity: 1.0;
}