使用表格与json实现的网站导航

使用方法:直接调用,把数据构建成JSON格式即可,如下:

window.onload = function()
{
     var tf="if1";
     var data=[{m:"体育网站",s:[{sn:"百度体育",st:"http://news.baidu.com/n?cmd=1&class=sportnews"},
             {sn:"搜狐体育",st:"http://sports.sohu.com/"},
             {sn:"新浪体育",st:"http://sports.sina.com.cn/"}]},
         {m:"新闻网站",s:[{sn:"百度",st:"http://news.baidu.com/"},
             {sn:"搜狐",st:"http://news.sohu.com/"},
             {sn:"新浪",st:"http://news.sina.com.cn/"}]},
         {m:"视频网站",s:[{sn:"百度视频",st:"http://vedio.baidu.com/"},
             {sn:"搜狐视频",st:"http://tv.sohu.com/"},
             {sn:"新浪视频",st:"http://vedio.sina.com.cn/"}]}
        ];
    var nav=new tableNav("table1",data,tf);
    var bautoClose=false; //打开当前导航条时其它导航条是否关闭
    nav.generateNav(bautoClose);
}

 

下面是整个实例代码,供大家参考:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>使用表格与json实现的网站导航 - www.web2bar.cn </title>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <style type="text/css">
        #divtitle{
            border:solid 1px #000000;
            width:98%;
            height:100px;
            text-align:center;
        }
        #div1{
            border:solid 1px #000000;
            width:18%;
            height:700px;
            float:left;
        }
        #div2{
            
            width:80%;
            height:700px;
            float:left;
        }

        <!--偶数行,0,2,4...-->
        .oddrow{
            margin-top:1px;
        }
        .oddrow td{
            text-decoration:underline;
            background-color:#666666;
            color:#ccc;
            cursor:pointer;
        }

        <!--奇数行-->
        .evenrow{
            display:none;
        }
        .evenrow a{
            margin-left:10px;
            margin-top:2px;
        }
        .evenrow td{
            background-color:#eee;
            display:block;
        }
    </style>
    
<script type="text/javascript">
    window.onload = function()
    {
        var tf="if1";
        var data=[{m:"体育网站",s:[{sn:"百度体育",st:"http://news.baidu.com/n?cmd=1&class=sportnews"},
                                  {sn:"搜狐体育",st:"http://sports.sohu.com"},
                                  {sn:"新浪体育",st:"http://sports.sina.com.cn"}]},
                  {m:"新闻网站",s:[{sn:"百度",st:"http://news.baidu.com"},
                                  {sn:"搜狐",st:"http://news.sohu.com"},
                                  {sn:"新浪",st:"http://news.sina.com.cn"}]},
                  {m:"视频网站",s:[{sn:"百度视频",st:"http://vedio.baidu.com"},
                                  {sn:"搜狐视频",st:"http://tv.sohu.com"},
                                  {sn:"新浪视频",st:"http://vedio.sina.com.cn"}]}
                 ];
        var nav=new tableNav("table1",data,tf);
        var bautoClose=false;    //打开当前导航条时其它导航条是否关闭
        nav.generateNav(bautoClose);
    }
    
    function tableNav(tblid,data,ifname)
    {    
        var tbl= document.getElementById(tblid);
        //1.删除表格中存在的行
        for (var t = 0; t < tbl.rows.length;t++){tbl.deleteRow(t);}
        //2.添加数据
        var idx=0;
        for(var t=0;t<data.length;t++)
        {
            var row=tbl.insertRow(idx);
            var cell=row.insertCell(0);
            cell.innerHTML=data[t].m;
            row.className="oddrow";
            idx++;

            var row=tbl.insertRow(idx);
            row.className="evenrow";
            var cell=row.insertCell(0);
            for (var i=0;i<data[t].s.length;i++)
            {
                cell.innerHTML += "<a href='" +data[t].s[i].st+"' target='"+ ifname +"'>"+ data[t].s[i].sn +"</a><br />";    
            }
            row.style.display="none";
            idx++;
        }

        this.generateNav=function(bautoClose){
            for (var i = 0; i < tbl.rows.length; i++)
            if (i % 2==0)
            {
                var obj = tbl.rows[i].getElementsByTagName("td")[0];
                obj.onclick = function()
                {   
                    var o = this.parentNode.nextSibling;
                    if (o.nodeType != 1)
                    {
                        o = o.nextSibling;
                    }
                    o.style.display = (o.style.display == "block") ? "none" : "block"
                    if (bautoClose)
                    {
                        for (var j = 1; j < tbl.rows.length; j =j+ 2)
                        {
                            if (tbl.rows[j] !=o)
                            {
                                tbl.rows[j].style.display = "none";
                            }
                        }
                    }
                }
            }
        };
    }
</script>
</head>
<body >
    <div id="divtitle">
        <h1>使用表格与json实现的网站导航</h1>
    </div>
    <div id="div1">
        <table id="table1">

        </table>
    </div>
    <div id="div2">
        <iframe id='if1' name='if1' src="" width="100%" height="100%" border=”0″ marginwidth=”0″ marginheight=”0″ allowtransparency=”yes"></iframe>
    </div>

</body>
</html>