选项卡

//后台页面选项卡
function myTab(id){
    var oTab = document.getElementById(id);
    var oLis = oTab.getElementsByTagName("li");
    var oDivs = oTab.getElementsByTagName("div");
    function changeTab(nIndex) {
        for (var i = 0; i < oLis.length; i++) {
            oLis[i].className = null;
            oDivs[i].className = null;
        }
        oLis[nIndex].className = "select";
        oDivs[nIndex].className = "select";
    }
    for (var i = 0; i < oLis.length; i++) {
        ~function (i) {
            oLis[i].onclick = function () {
                changeTab(i);
            }
        }(i);
    }
}