iframe designmode =＆＃34; on＆＃34;即，在深div中

Question

我有＆＃34; mypage.html＆＃34;其中包含

<div id = "more">
 <div id = "content">
  </div>
 </div>

  

  where <div id = "content"> contains another html page 
  I have accessed it using jquery in "mypage.html"
  the code is 

 $(document).ready(function(){
    $("#content_window").load("otherpage.html");   
}); 

  

其中＆＃34; otherpage.html＆＃34;包含

<div id = "question>
  <div id = "box">
    <div id = "richtextare">
      <iframe id = "wysiwyg" name = "wysiwyg">
      </iframe>
     </div>
   </div>
 </div>

Where＆＃34; Elements＆＃34;是＆＃34; DevTools＆＃34;在chrome中显示像这样的元素

<div id = "more">
 <div id = "content">
  <div id = "question>
   <div id = "box">
    <div id = "richtextare">
    <iframe id = "wysiwyg" name = "wysiwyg">
    </iframe>
   </div>
  </div>
  </div>
 </div>
</div>

  

现在我怎样才能＆＃34; on＆＃34; ＆＃34; iframe＆＃34;的设计模式。当我使用

 var richeditor = wysiwyg.document;
       richeditor.designMode = "on";

设计模式正在＆＃34; otherpage.html＆＃34;但它不适用于＆＃34; mypage.html＆＃34;