$(function() {
$(".postthumb").css("opacity","0.3");
$(".postthumbr").css("opacity","0.3");

// ON MOUSE OVER
$(".postthumb").hover(function () {

// SET OPACITY TO 100%
$(this).stop().animate({
opacity: 1.0
}, "fast");
},

// ON MOUSE OUT
function () {

// SET OPACITY BACK TO 50%
$(this).stop().animate({
opacity: 0.3
}, "fast");
});

// ON MOUSE OVER
$(".postthumbr").hover(function () {

// SET OPACITY TO 100%
$(this).stop().animate({
opacity: 1.0
}, "fast");
},

// ON MOUSE OUT
function () {

// SET OPACITY BACK TO 50%
$(this).stop().animate({
opacity: 0.3
}, "fast");
});
});