//all fade effect:

$(document).ready(function()
{
    $("#all").hide();
    $("#all").fadeIn(1000);

    //buttons fade effect:

    $("#menu a").hover(function()
    {
        $(this).stop().animate(
        {
            "opacity": "0.75"
        });
    },
    function()
    {
        $(this).stop().animate(
        {
            "opacity": "1"
        });
    });

    $("#ps, #ai").css("opacity", "0.5");
    $("#ps, #ai").hover(function()
    {
        $(this).stop().animate(
        {
            "opacity": "1"
        });
    },
    function()
    {
        $(this).stop().animate(
        {
            "opacity": "0.5"
        });
    });
});