给隐藏表单域赋值?

[jacshan]

怎么把下面提交的文件名赋给隐藏表单域filename
<FORM METHOD="post" ACTION="test.jsp" name="form1">

<table width="780" border="0" align="center" cellspacing="1">

<tr>
<th align="center"><span class="style2 style1">上传资料</span></th>
</tr>

<tr>
<td>文件标题<td>
</tr>

<tr>
<td><input type="text" size="50" name="ziliao"><td>
</tr>

<tr>
<td>
<div align="left">请选择文件<br>
<input type="FILE" name="file" size="30">
</div>
</td>
</tr>

<tr>
<td><input type="hidden" size="50" name="filename" ><td>
</tr>
<tr>
<td>
<input name="submit" type="submit" value="上传" align="middle" >
</td>
</tr>

</table>
</form>

[guo9038]

<FORM METHOD="post" ACTION="test.jsp" name="form1" onsubmit="this.filename.value=this.file.value;">

或
<FORM METHOD="post" ACTION="test.jsp" name="form1" onsubmit="document.getElementsByName('filename').value=
document.getElementsByName('file').value;">

[jacshan]

我试试，行了就马上给分

[jacshan]

不是这个，我只要文件名，不要路径

[guo9038]

<FORM METHOD="post" ACTION="test.jsp" name="form1" onsubmit="document.getElementById('filename').value=
document.getElementById('file').value.replace(/.+\\/g,'')">

<table width="780" border="0" align="center" cellspacing="1">

<tr>
<th align="center"><span class="style2 style1">上传资料</span></th>
</tr>

<tr>
<td>文件标题<td>
</tr>

<tr>
<td><input type="text" size="50" name="ziliao"><td>
</tr>

<tr>
<td>
<div align="left">请选择文件<br>
<input type="FILE" name="file" id="file" size="30">
</div>
</td>
</tr>

<tr>
<td><input type="hidden" size="50" id="filename" name="filename" ><td>
</tr>
<tr>
<td>
<input name="submit" type="submit" value="上传" align="middle" >
</td>
</tr>

</table>
</form>

[jacshan]

非常感谢你的回答，给分