j = document.images;

    if (j) {
        button00 = new Image(); button00.src = "images/button00.jpg";
        button001 = new Image(); button001.src = "images/button001.jpg";

        button01 = new Image(); button01.src = "images/button01.jpg";
        button011 = new Image(); button011.src = "images/button011.jpg";

        button02 = new Image(); button02.src = "images/button02.jpg";
        button021 = new Image(); button021.src = "images/button021.jpg";

        button03 = new Image(); button03.src = "images/button03.jpg";
        button031 = new Image(); button031.src = "images/button031.jpg";

        button04 = new Image(); button04.src = "images/button04.jpg";
        button041 = new Image(); button041.src = "images/button041.jpg";

        button05 = new Image(); button05.src = "images/button05.jpg";
        button051 = new Image(); button051.src = "images/button051.jpg";

        button06 = new Image(); button06.src = "images/button06.jpg";
        button061 = new Image(); button061.src = "images/button061.jpg";

        button07 = new Image(); button07.src = "images/button07.jpg";
        button071 = new Image(); button071.src = "images/button071.jpg";

        button08 = new Image(); button08.src = "images/button08.jpg";
        button081 = new Image(); button081.src = "images/button081.jpg";
    }

    function img_act(p) {
        if (j) {
            on = eval(p + "1.src");
            document[p].src = on;
        }
    }

    function img_inact(p) {
        if (j) {
            off = eval(p + ".src");
            document[p].src = off;
        }
    }

    function showDiv(divName) {
        document.getElementById(divName).style.display = "block";
    }
    function hiddenDiv(divName) {
        document.getElementById(divName).style.display = "none";
    }
    function showDiv1(divName, divName1) {
        if (document.getElementById(divName).style.display == "none") {
            document.getElementById(divName).style.display = "block";
            document.getElementById(divName1).style.display = "block"
        }
        else {
            document.getElementById(divName1).style.display = "block"
        }
    }
    function hiddenDiv1(divName, divName1) {
        document.getElementById(divName).style.display = "none";
        document.getElementById(divName1).style.display = "none";
    }

    function show(i) {
        for (n = 1; n <= 4; n++) {
            obj = document.getElementById("d" + n);
            obj2 = document.getElementById("s" + n);
            if (i == n) {
                obj.style.display = "block";
                obj2.src = obj2.src.replace(".jpg", "_.jpg");
            } else {
                obj.style.display = "none";
                obj2.src = obj2.src.replace("_.jpg", ".jpg");
            }
        }
    }