1.调用appendChild方法增加input对象,设置type属性的位置
   
 1  <html>
 2    <head>
 3    <title>test</title>
 4    <script language="javascript">
 5    function test(){
 6        var tbodyElement=document.getElementById("tbody1");
 7        var trElement=document.createElement("tr");
 8        var idTDElement=document.createElement("td");
 9        
10        idTDElement.innerHTML=1;
11        var nameTDElement=document.createElement("td");
12        
13        var inputElement=document.createElement("input");
14        nameTDElement.appendChild(inputElement);
15        inputElement.type="button";  
16        //在IE中,这句话将会抛出异常,但在firefox能正常运行,如果type为text或者不设置type属性,也都能正常运行
17        inputElement.value="Invoke";
18        /*
19        修改成下面的语句就能正常运行:
20        var inputElement=document.createElement("input");
21        inputElement.type="button";
22        nameTDElement.appendChild(inputElement);
23        */

24        
25        tbodyElement.appendChild(trElement);
26        trElement.appendChild(idTDElement);
27        trElement.appendChild(nameTDElement);
28    }

29    
</script>
30    </head>
31    <body>
32        <input type="button" value="insert" onclick='test()'>
33        <table cellpadding="0" cellspacing="0" border="1">
34            <tbody id='tbody1'>
35                <tr>
36                    <td width="50">ID</td>
37                    <td width="200">name</td>
38                </tr>
39            </tbody>
40        </table>
41    </body>
42  </html> 
 
2.appendChild一个radio对象,设置该对象的name属性
 1  var nameTDElement=document.createElement("td");  
 2  var radioElement=document.createElement("input");
 3  radioElement.type="radio";
 4  nameTDElement.appendChild(inputElement);
 5  radioElement.name="testRadioName";  //这句话在firefox是起作用的,但在IE下是不起作用的
 6  /*解决的办法是
 7  var radioElement=document.createElement("<input name='testRadioName'>");
 8  radioElement.type="radio";
 9  nameTDElement.appendChild(inputElement);
10  */

3.对select控件增加和删除Option
 1  <html>
 2    <head>
 3    <title>test</title>
 4    <script language="javascript">
 5    function deleteRow(){
 6        var selectElement=document.getElementById("select1");
 7        selectElement.options.remove(1);  //IE:OK        Firefox:Failure
 8        selectElement.remove(1);          //IE:OK        Firefox:OK
 9    }

10    function insertRow(){
11        var selectElement=document.getElementById("select1");
12        var option=new Option("eeee",5);        
13        selectElement.add(option);        //IE:OK        Firefox:Failure
14        selectElement.options.add(option);//IE:OK        Firefox:OK
15    }

16    
</script>
17    </head>
18    <body>
19    <input type="button" value="Delete" onclick='deleteRow()'>
20    <input type="button" value="Insert" onclick='insertRow()'>
21    <select id="select1">
22        <option  value="1">aaa</option>
23        <option  value="2">bbb</option>
24        <option  value="3">ccc</option>
25        <option  value="4">ddd</option>
26    </select>
27    </body>
28  </html>