Uso Jquery.
Código PHP:
$(document).ready(function() {
// find the div.fade elements and hook the hover event
$('.fadeThis').hover(function() {
// on hovering over find the element we want to fade *up*
var fade = $('> .hover', this);
// if the element is currently being animated (to fadeOut)...
if (fade.is(':animated')) {
// ...stop the current animation, and fade it to 1 from current position
fade.stop().fadeTo(500, 1);
} else {
fade.fadeIn(500);
}
}, function () {
var fade = $('> .hover', this);
if (fade.is(':animated')) {
fade.stop().fadeTo(500, 0);
} else {
fade.fadeOut(500);
}
});
}