$(document).ready(function() {
    var initialImgOpacity = 0.5;
    var initialAOpacity = 0.7;
    $("#menu a:not(.selected), #languages img:not(.selected)")
    .filter("a").css({opacity : initialAOpacity}).end()
    .filter("img").css({opacity : initialImgOpacity}).end()
    .hover(function() {
        $(this).stop().animate({opacity : 1.0}, "slow");
    }, function() {
        var element = $(this);
        var isImg = element.is("img");
        element.stop().animate({opacity : isImg ? initialImgOpacity : initialAOpacity}, "slow");
    });
});