如何根据节点id来删除节点?

[lyt5664681]

如
<table>
<tr id="tr1">
<td id="td1">
123
</td>
<td id="td2">
223
</td>
</tr>
<table>

我想删除td2 该怎么做呢?
好像document.getElementById("tr1").removeChild("td2") 不行..

忘达人解答..
thanks...

[草根醉秋意]

document.getElementById("tr1").removeChild(document.getElmentById("td2"))

[lovesiyile]

var remove=function(id){
var el=document.getElmentById(id);
el.parentNode.removeChild(el);

}
remove("td2")

[xin9755]

<table> 
  <tr id="tr1"> 
    <td id="td1"> 
      123 
    </td> 
    <td id="td2"> 
      223 
    </td> 
  </tr> 
<table> 

<SCRIPT LANGUAGE="JavaScript">
<!--
var xin = document.getElementById("tr1");
var sw = document.getElementById("td2");
xin.removeChild(sw);

//-->
</SCRIPT>

[sfli_g]

接分.................