双击事件 如何写

[taylermail]

我想实现 点击"点我 "将num值给我 输入框 "id"
...........
<tr>
<td>
<form ACTION="2.asp" METHOD="POST" >
<input TYPE="text" SIZE="15" NAME="id" maxlength="7">
</form>
</td>
</tr>
<tr>
<td ondblClick="shuangji(num)>编号：<%=num%></td>//双击这个值
</tr>
........................

function shuangji(num){
var aa=num;
document.getElementById("id").value=aa;
}

[shaoliang520xi]

<input TYPE="text" SIZE="15" NAME="id" id="id" maxlength="7">
function shuangji(num){
var aa=num;
document.getElementById("id").value=aa;
}
document.getElementById("")是取ID的

[wwtbless]

汗！<input TYPE="text" SIZE="15" NAME="id" maxlength="7">
用getElementById("id")如何获得？
应该:
fuction shuangji(num){
document.form[0].id.value = num
}

[hoojo]

<td ondblClick="shuangji(‘<%=num%>’)>编号：<%=num%></td>//双击这个值

[wwtbless]

document.form[0].id.value = num
改:document.forms[0].id.value = num