父窗体与子窗体iFrame传值

Question

iFrame 中如何得到 父窗体中的一个 hidden 的值？父窗体 中：<from name='upload_form'>
<td align="left">
  <input type='hidden' id='icon' name='icon' value='/image/default.gif'>
  <iframe id="uploadFrame" name="uploadFrame" frameborder="0" scrolling="no" width="100%" height="153" src="upload.jsp"></iframe>
</td>
</form>iFrame 中有个图片，想得到 父窗体 中隐藏的 hidden 中的值
<from name='sub_form'>
  <img id="headimg1" src="javascript:window.frames['upload_form'].document.getElementById('icon').value;" />
</form>...

Answer 1

换成：<img id="headimg1" src="window.opener.parent.ducument.getElementById('userIcon')=a.jsp;"  />也不行

Answer 2

是：
<img id="headimg1" src="window.opener.parent.ducument.getElementById('icon')=a.jsp;"  />

Answer 3

不需要parent
你用下面这个方法访问试试.
window.opener.document.upload_form.ico.value 

Answer 4

在upload.jsp中：
window.parent.window.document.all.icon.value;

Answer 5

sub_form.headimg1.location=parent.upload_form.icon.value

Answer 6

To: minidaylyTks !  但是您的方法不行啊！很感谢！

Answer 7

To: spaceko2006 、jayfleeTks !  很感谢！ 不过也是不行啊！

Answer 8

window.parent.document.getElementById('icon').value

Answer 9

...
<from name='sub_form'> 
  <img id="headimg1" src="" /> 
</form> 
<script>
document.getElementById('headimg1').src=window.parent.document.getElementById('icon').value;
</script>
...

Answer 10

window.dialogArguments.document.getElementById('icon').value;
这个肯定可以