<script language="javascript" type="text/javascript">// 生成目录索引列表// ref: http://www.cnblogs.com/wangqiguo/p/4355032.html// modified by: zzqfunction GenerateContentList(){    var mainContent = $(‘#cnblogs_post_body‘);    var h2_list = $(‘#cnblogs_post_body h2‘);//如果你的章节标题不是h2,只需要将这里的h2换掉即可    if(mainContent.length < 1)        return;     if(h2_list.length>0)    {        var content = ‘<a name="_labelTop"></a>‘;        content += ‘<div id="navCategory" style="color:#152e97;">‘;        content += ‘<p style="font-size:18px;"><b>目录</b></p>‘;        content += ‘<ul>‘;        for(var i=0; i<h2_list.length; i++)        {            var go_to_top = ‘<div style="text-align: right;"><a href="http://www.mamicode.com/#_labelTop" style="color:#f68a33">回到顶部</a><a name="_label‘ + i + ‘"></a></div>‘;            $(h2_list[i]).before(go_to_top);                        var h3_list = $(h2_list[i]).nextAll("h3");            var li3_content = ‘‘;            for(var j=0; j<h3_list.length; j++)            {                var tmp = $(h3_list[j]).prevAll(‘h2‘).first();                if(!tmp.is(h2_list[i]))                    break;                var li3_anchor = ‘<a name="_label‘ + i + ‘_‘ + j + ‘"></a>‘;                $(h3_list[j]).before(li3_anchor);                li3_content += ‘<li><a href="http://www.mamicode.com/#_label‘ + i + ‘_‘ + j + ‘">‘ + $(h3_list[j]).text() + ‘</a></li>‘;            }                        var li2_content = ‘‘;            if(li3_content.length > 0)                li2_content = ‘<li><a href="http://www.mamicode.com/#_label‘ + i + ‘">‘ + $(h2_list[i]).text() + ‘</a><ul>‘ + li3_content + ‘</ul></li>‘;            else                li2_content = ‘<li><a href="http://www.mamicode.com/#_label‘ + i + ‘">‘ + $(h2_list[i]).text() + ‘</a></li>‘;            content += li2_content;        }        content += ‘</ul>‘;        content += ‘</div><p>&nbsp;</p>‘;        content += ‘<hr style="height:1px;border:none;border-top:1px dashed #0066CC;"/>‘;        if($(‘#cnblogs_post_body‘).length != 0 )        {            $($(‘#cnblogs_post_body‘)[0]).prepend(content);        }    }   }GenerateContentList();</script>

/*生成博客目录的CSS*/#uprightsideBar{    font-size:12px;    font-family:Arial, Helvetica, sans-serif;    text-align:left;    position:fixed;/*将div的位置固定到距离top:50px，right:0px的位置，这样div就会处在最右边的位置，距离顶部50px*/    top:50px;    right:0px;    width: auto;    height: auto; }#sideBarTab{    float:left;    width:30px;     border:1px solid #e5e5e5;    border-right:none;    text-align:center;    background:#ffffff;}#sideBarContents{    float:left;    overflow:auto;     overflow-x:hidden;!important;    width:200px;    min-height:108px;    max-height:460px;    border:1px solid #e5e5e5;    border-right:none;     background:#ffffff;}#sideBarContents dl{    margin:0;    padding:0;}#sideBarContents dt{    margin-top:5px;    margin-left:5px;}#sideBarContents dd, dt {    cursor: pointer;}#sideBarContents dd:hover, dt:hover {    color:#A7995A;}#sideBarContents dd{    margin-left:20px;}

<script type="text/javascript">/*    功能：生成博客目录的JS工具    测试：IE8，火狐，google测试通过    孤傲苍狼    2014-5-11*/var BlogDirectory = {    /*        获取元素位置，距浏览器左边界的距离（left）和距浏览器上边界的距离（top）    */    getElementPosition:function (ele) {                var topPosition = 0;        var leftPosition = 0;        while (ele){                          topPosition += ele.offsetTop;            leftPosition += ele.offsetLeft;                    ele = ele.offsetParent;             }          return {top:topPosition, left:leftPosition};     },    /*    获取滚动条当前位置    */    getScrollBarPosition:function () {        var scrollBarPosition = document.body.scrollTop || document.documentElement.scrollTop;        return  scrollBarPosition;    },        /*    移动滚动条，finalPos 为目的位置，internal 为移动速度    */    moveScrollBar:function(finalpos, interval) {        //若不支持此方法，则退出        if(!window.scrollTo) {            return false;        }        //窗体滚动时，禁用鼠标滚轮        window.onmousewheel = function(){            return false;        };                  //清除计时        if (document.body.movement) {             clearTimeout(document.body.movement);         }         var currentpos =BlogDirectory.getScrollBarPosition();//获取滚动条当前位置        var dist = 0;         if (currentpos == finalpos) {//到达预定位置，则解禁鼠标滚轮，并退出            window.onmousewheel = function(){                return true;            }            return true;         }         if (currentpos < finalpos) {//未到达，则计算下一步所要移动的距离            dist = Math.ceil((finalpos - currentpos)/10);             currentpos += dist;         }         if (currentpos > finalpos) {             dist = Math.ceil((currentpos - finalpos)/10);             currentpos -= dist;         }                var scrTop = BlogDirectory.getScrollBarPosition();//获取滚动条当前位置        window.scrollTo(0, currentpos);//移动窗口        if(BlogDirectory.getScrollBarPosition() == scrTop)//若已到底部，则解禁鼠标滚轮，并退出        {            window.onmousewheel = function(){                return true;            }            return true;        }                //进行下一步移动        var repeat = "BlogDirectory.moveScrollBar(" + finalpos + "," + interval + ")";         document.body.movement = setTimeout(repeat, interval);     },        htmlDecode:function (text){        var temp = document.createElement("div");        temp.innerHTML = text;        var output = temp.innerText || temp.textContent;        temp = null;        return output;    },    /*    创建博客目录，    id表示包含博文正文的 div 容器的 id，    mt 和 st 分别表示主标题和次级标题的标签名称（如 H2、H3，大写或小写都可以！），    interval 表示移动的速度    */    createBlogDirectory:function (id, mt, st, interval){         //获取博文正文div容器        var elem = document.getElementById(id);        if(!elem) return false;        //获取div中所有元素结点        var nodes = elem.getElementsByTagName("*");        //创建博客目录的div容器        var divSideBar = document.createElement(‘DIV‘);        divSideBar.className = ‘uprightsideBar‘;        divSideBar.setAttribute(‘id‘, ‘uprightsideBar‘);        var divSideBarTab = document.createElement(‘DIV‘);        divSideBarTab.setAttribute(‘id‘, ‘sideBarTab‘);        divSideBar.appendChild(divSideBarTab);        var h2 = document.createElement(‘H2‘);        divSideBarTab.appendChild(h2);        var txt = document.createTextNode(‘目录导航‘);        h2.appendChild(txt);        var divSideBarContents = document.createElement(‘DIV‘);        divSideBarContents.style.display = ‘none‘;        divSideBarContents.setAttribute(‘id‘, ‘sideBarContents‘);        divSideBar.appendChild(divSideBarContents);        //创建自定义列表        var dlist = document.createElement("dl");        divSideBarContents.appendChild(dlist);        var num = 0;//统计找到的mt和st        mt = mt.toUpperCase();//转化成大写        st = st.toUpperCase();//转化成大写        //遍历所有元素结点        for(var i=0; i<nodes.length; i++)        {            if(nodes[i].nodeName == mt|| nodes[i].nodeName == st)                {                //获取标题文本                var nodetext = nodes[i].innerHTML.replace(/<\/?[^>]+>/g,"");//innerHTML里面的内容可能有HTML标签，所以用正则表达式去除HTML的标签                nodetext = nodetext.replace(/ /ig, "");//替换掉所有的                 nodetext = BlogDirectory.htmlDecode(nodetext);                //插入锚                        nodes[i].setAttribute("id", "blogTitle" + num);                var item;                switch(nodes[i].nodeName)                {                    case mt:    //若为主标题                         item = document.createElement("dt");                        break;                    case st:    //若为子标题                        item = document.createElement("dd");                        break;                }                                //创建锚链接                var itemtext = document.createTextNode(nodetext);                item.appendChild(itemtext);                item.setAttribute("name", num);                item.onclick = function(){        //添加鼠标点击触发函数                    var pos = BlogDirectory.getElementPosition(document.getElementById("blogTitle" + this.getAttribute("name")));                    if(!BlogDirectory.moveScrollBar(pos.top, interval)) return false;                };                                            //将自定义表项加入自定义列表中                dlist.appendChild(item);                num++;            }        }                if(num == 0) return false;         /*鼠标进入时的事件处理*/        divSideBarTab.onmouseenter = function(){            divSideBarContents.style.display = ‘block‘;        }        /*鼠标离开时的事件处理*/        divSideBar.onmouseleave = function() {            divSideBarContents.style.display = ‘none‘;        }        document.body.appendChild(divSideBar);    }    };window.onload=function(){    /*页面加载完成之后生成博客目录*/    BlogDirectory.createBlogDirectory("cnblogs_post_body","h2","h3",20);}</script>