// JScript 文件

    function SetMenu(a)
    {
        var tab1 = document.getElementById("tab1");
        tab1.background="images/index_12.jpg";
        tab1.className="menu1";
        var tab2 = document.getElementById("tab2");
        tab2.background="images/index_12.jpg";
        tab2.className="menu1";
        var tab3 = document.getElementById("tab3");
        tab3.background="images/index_12.jpg";
        tab3.className="menu1";
        var tab4 = document.getElementById("tab4");
        tab4.background="images/index_12.jpg";
        tab4.className="menu1";
        var tab5 = document.getElementById("tab5");
        tab5.background="images/index_12.jpg";
        tab5.className="menu1";
        var tab6 = document.getElementById("tab6");
        tab6.background="images/index_12.jpg";
        tab6.className="menu1";
        var tab7 = document.getElementById("tab7");
        tab7.background="images/index_12.jpg";
        tab7.className="menu1";
        var tab8 = document.getElementById("tab8");
        tab8.background="images/index_12.jpg";
        tab8.className="menu1";
        if(a == "1")
        {
            tab1.background="images/index_15.jpg";
            tab1.className="menu";
        }
        if(a == "2")
        {
            tab2.background="images/index_15.jpg";
            tab2.className="menu";
        }
        if(a == "3")
        {
            tab3.background="images/index_15.jpg";
            tab3.className="menu";
        }
        if(a == "4")
        {            
            tab4.background="images/index_15.jpg";
            tab4.className="menu";
        }
        if(a == "5")
        {
            tab5.background="images/index_15.jpg";
            tab5.className="menu";
        }
        if(a == "6")
        {
            tab6.background="images/index_15.jpg";
            tab6.className="menu";
        }
        if(a == "7")
        {
            tab7.background="images/index_15.jpg";
            tab7.className="menu";
        }
        if(a == "8")
        {
            tab8.background="images/index_15.jpg";
            tab8.className="menu";
        }
    }