function IndexTag(tag) {
    if (tag == "1") {
        document.getElementById("tag1").className = "indextag2";
        document.getElementById("tag2").className = "indextag1";
        document.getElementById("div1").style.display = "block";
        document.getElementById("div2").style.display = "none";
    }
    else {
        document.getElementById("tag1").className = "indextag1";
        document.getElementById("tag2").className = "indextag2";
        document.getElementById("div1").style.display = "none";
        document.getElementById("div2").style.display = "block";
    }
}
function IndexLeft(left) {
    if (left == "1") {
        document.getElementById("left1").className = "indexleft1";
        document.getElementById("left2").className = "indexleft2";
        document.getElementById("left3").className = "indexleft2";

        document.getElementById("leftdiv1").style.display = "block";
        document.getElementById("leftdiv2").style.display = "none";
        document.getElementById("leftdiv3").style.display = "none";
    }
    else if (left == "2") {
        document.getElementById("left1").className = "indexleft2";
        document.getElementById("left2").className = "indexleft1";
        document.getElementById("left3").className = "indexleft2";
        document.getElementById("leftdiv1").style.display = "none";
        document.getElementById("leftdiv2").style.display = "block";
        document.getElementById("leftdiv3").style.display = "none";
    }
    else {
        document.getElementById("left1").className = "indexleft2";
        document.getElementById("left2").className = "indexleft2";
        document.getElementById("left3").className = "indexleft1";

        document.getElementById("leftdiv1").style.display = "none";
        document.getElementById("leftdiv2").style.display = "none";
        document.getElementById("leftdiv3").style.display = "block";
    }
}