如何获得当前行内文件框或下拉列表框的值

[wzrlover]

如:
<tr>
<td><input name="input1" value="abcd"></td>
<td><select name="select1" onChange="doSelect(this);">
<option value="1" selected>1</option>
</select>
</td>
</tr>
<tr>
....
</tr>

function doSelect(obj){
alert(obj.input1.value);//错误!input1.value为空或不是对象
}

这样有多行,我想通过select的OnChange方法获得触发该事件的当前行的文本框input1,以及select1的当前值?

[qiangtian]

<tr>
<td><input name="input1" value="abcd"></td>
<td><select name="select1" onChange="doSelect();">
<option value="1" selected>1</option>
<option value="2">2</option>
</select>
</td>
</tr>
<SCRIPT LANGUAGE="JavaScript">
<!--
function doSelect(){
alert(document.all.input1.value);
}

//-->
</SCRIPT>

[seabell]

<script>
function doSelect(obj)
{
alert("txt="+obj.parentNode.previousSibling.childNodes[0].value+";sel="+obj.value);
}
</script>
<table>
<tr>
<td><input name="input1" value="abcd"></td>
<td><select name="select1" onChange="doSelect(this);">
<option value="1" selected>1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
</select>
</td>
</tr>
<tr>
<td><input name="input1" value="abcd"></td>
<td><select name="select1" onChange="doSelect(this);">
<option value="1" selected>1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
</select>
</td>
</tr><tr>
<td><input name="input1" value="abcd"></td>
<td><select name="select1" onChange="doSelect(this);">
<option value="1" selected>1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
</select>
</td>
</tr>
</table>

[wzrlover]

to seabell(百合心)
alert("txt="+obj.parentNode.previousSibling.childNodes[0].value+";sel="+obj.value);

出现"缺少对象错误",我改为obj.select1.parentNode......,obj.input1.value,也不行!

[seabell]

我运行上面文件是正常的。你是否作了改动？

[wzrlover]

除了，列数以及name名称不一样外，每什么区别啊

[seabell]

跟列数有关。贴你的代码上来

[wzrlover]

总共8列，如:
<tr>
<td><select name="select1" onChange="doSelect(this);">
<option value="1" selected>1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
</select>
</td>
<td>2<td>
<td>3<td>
<td>4<td>
<td>5<td>
<td>6<td>
<td>7<td>
<td><input name="input1" value="abcd"></td>
</tr>
<tr>
.....
</tr>
.....

[seabell]

<script>
function doSelect(obj)
{
alert("txt="+obj.parentNode.parentNode.cells[7].childNodes[0].value+";sel="+obj.value);
}
</script>

...
<tr>
<td><select name="select1" onChange="doSelect(this);">
<option value="1" selected>1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
</select>
</td>
<td>2</td>
<td>3</td>
<td>4</td>
<td>5</td>
<td>6</td>
<td>7</td>
<td><input name="input1" value="abcd"></td>
</tr>
...

[wzrlover]

OK!明白了！十分感谢 seabell(百合心) ！