Merge pull request #55 from linojon/nested_iframe

allow select on nested iframe

Author: jeremy

lib/mail_view/email.html.erb

@@ -83,7 +83,7 @@
 
     <% if mail.multipart? %>
       <dd>
-        <select onchange="top.messageBody.location=this.options[this.selectedIndex].value;">
+        <select onchange="document.getElementsByName('messageBody')[0].src=this.options[this.selectedIndex].value;">
           <option value="?part=text%2Fhtml">View as HTML email</option>
           <option value="?part=text%2Fplain">View as plain-text email</option>
         </select>