$(function() {
// OPACITY OF BUTTON SET TO 50%
$(".fade").css("opacity","1");
 
// ON MOUSE OVER
$(".fade").hover(function () {
 
// SET OPACITY TO 100%
$(this).stop().animate({
opacity: 0.7
}, "normal");
},
 
// ON MOUSE OUT
function () {
 
// SET OPACITY BACK TO 50%
$(this).stop().animate({
opacity: 1
}, "fast");
});
});