$(function(){
    var length = $("#hngk-gallery > div").length;
    var start = Math.floor(Math.random()*length);
    $("#hngk-gallery > div").hide();
    teh_loop(start, length);
});

function teh_loop(start, length) {
    var list = $("#hngk-gallery > div");
    var i;
    var element;
    for (i = 0; i < 5; i++) {
        element = list[(start + i) % length];
        $(element).hide();
    }

    for (i = 5; i < 10; i++) {
        element = list[(start + i) % length];
        $(element).fadeIn();
    }
    start = (start + 5) % length;
    setTimeout("teh_loop(" + start + "," + length + ")", 10000);
}

$(function(){
    var length = $("#hngk-doitac > div").length;
    var start = Math.floor(Math.random()*length);
    $("#hngk-doitac > div").hide();
    teh_loop2(start, length);
});

function teh_loop2(start, length) {
    var list = $("#hngk-doitac > div");
    var i;
    var element;
    for (i = 0; i < 4; i++) {
        element = list[(start + i) % length];
        $(element).hide();
    }

    for (i = 4; i < 8; i++) {
        element = list[(start + i) % length];
        $(element).fadeIn();
    }
    start = (start + 4) % length;
    setTimeout("teh_loop2(" + start + "," + length + ")", 10000);
}