js动态添加table 数据tr td

成果库修改：
      要求主题列表随成果类型改变而改变
      网上查询资料后开工，在成果类型下拉框添加change()事件触发Dwr，查询主题集合——动态创建/编辑Table
      概要代码如下：
 
Jsp页面
[javascript]
//动态获取主题数据 
function getzts(){ 
    parentId = document.getElementById("bselect1").value; 
    if(parentId!=""){ 
        dwrMethod.getZtList(parentId,callback5); 
    }else{ 
        //清空主题Table的数据                   
        var t=document.getElementById("zhutiTable");  //获取Table 
        var length= t.rows.length;          //获得Table下的行数 
        if(length!=0){              //如果有行，则清空 
            for(var i=length-1;i>=0;i--)  
            {  
             t.deleteRow(i);     
            } 
        } 
        var r = t.insertRow(); 
        var c = r.insertCell(); 
        c.innerHTML="暂无主题列表"; 
        document.getElementById('zhutiTable').appendChild(t); 
    } 
} 
function callback5(provinces){ 
    var t=document.getElementById("zhutiTable");     //获取Table 
    var length= t.rows.length;             //获得Table下的行数 
    if(length!=0){                      //如果有行，则清空 
        for(var i=length-1;i>=0;i--)  
            {  
                t.deleteRow(i);     
                }  
    } 
    if(provinces.length>0){                           
        for (var i = 0; i < provinces.length; i++) { 
            //tr 
                    if(i%4==0){ 
                        var r = t.insertRow(t.rows.length);//创建新的行 
                     } 
                    //td  
            var c = r.insertCell();                //创建新的列 
            c.innerHTML = "<input type='checkbox' name='zhutiIds' value="+provinces[i][0]+">"+provinces[i][1]; 
            } 
    }else{ 
        var r = t.insertRow(); 
        var c = r.insertCell(); 
        c.innerHTML="暂无主题列表"; 
    } 
    document.getElementById('zhutiTable').appendChild(t); 
} 
 
[html]
<tr> 
    <td class="add_tit">成果类型</td> 
    <td> 
       <s:select id="bselect1" name="pruType1" onchange="getzts();"list="pTypeList" listKey="id" listValue="productionTypeName" headerKey="" headerValue="--  请选择  --" /> 
       <label class="note4">*</label> 
    </td> 
</tr> 
[html]
<tr> 
     <td class="add_tit">主题</td> 
     <td id="table1" style="padding-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;"> 
        <table id="zhutiTable" border="0" cellpadding="0" cellspacing="0" width=100% class="table_table"> 
       <tr> 
        <td style="color: red;">注:请先选择成果类型</td> 
       </tr> 
        </table> 
     </td> 
</tr>

---------------------------------------------------------------------------------------------我是分割线-----------------------------------------------------------------------------------------------------------

    function TbHeartrates()
    {
        $.post(window.location.href, { "action": "tbHeartrates" }, function (msg) {
            if (msg != "") {
                alert("");
                var obj = eval("(" + msg + ")");
                var num = obj.rows.length;
                //var aa = document.getElementById('tbheartrates');
                $('#tbheartrates').append('<tr><th>测试日期</th><th>测试结果</th><th>正常范围</th> <th>单位</th><th>温馨提示</th><th></th><th></th><th></th><th></th></tr>');
                for (var i = ; i < num; i++) {
                    var trObjs = document.createElement("tr");
                    trObjs.innerHTML = '<td class="tdfirstline">11月10日</td>  <td class="tdsecondline">' + obj.rows[i].JSON_ecg + '</td>  <td class="tdthreeline">60-100</td>  <td class="tdfourline">次/m</td> <td class="tdfiveline">您的心率低于正常范围</td>    <td class="tdsixline"></td>   <td class="tdsevenline"></td>  <td class="tdeightline"></td>  <td class="tdnineline"></td>';
                    var trObjimg = document.createElement("tr");
                    trObjimg.innerHTML = ' <td colspan="9"><img src="' + obj.rows[i].JSON_ecgxy + '" style="margin-left:-30px;" /></td>';
                    $('#tbheartrates').append(trObjs);
                    $('#tbheartrates').append(trObjimg);
                }
            }
        });
    }