// http://hv-designs.co.uk/2010/01/13/learn-how-to-add-a-jquery-fade-in-and-out-effect/
$(function() {
// OPACITY OF BUTTON SET TO 50%
$(".post_title").css("opacity","0.5");
// ON MOUSE OVER
$(".post_title").hover(function () {
// SET OPACITY TO 100%
$(this).stop().animate({
opacity: 1.0
}, "slow");
},
 // ON MOUSE OUT
function () {
// SET OPACITY BACK TO 50%
$(this).stop().animate({
opacity: 0.5
}, "slow");
});
});