<iframe> - can I change DOCTYPE

[icogs]

If I have an <iframe> element with a src attribute set to
"somedoc.xml" then, as expected, the iframe.contentDocument.doctype
matches the source file.

If I do not specify a src document I get, in Firefox at least,
about:blank loaded which is a vanilla html document.

Say I want to create the contents of the <iframe> document entirely
programmatically and the default html document is not appropriate. Can
I somehow specify the appropriate DOCTYPE ?

I have a work-around whereby I set the src attribute to a skeleton
document, but this is not ideal.

 

[gimme_this_gimme_that]

This might give you a start - it's untested ...

<iframe id="my_frame" name="my_frame" DOCTYPE=""/>
<script language="JavaScript">
var iframe = document.getElementById('my_frame');
iframe.DOCTYPE="text/html";
// to add content to the iframe try:
var text_node = document.createTextNode('hello world');
iframe.appendChild(iframe);
</script>