[jQuery] Ajax.load doesn't work for <head> element?

[jQuery] Ajax.load doesn't work for <head> element?


Greetings,
I'm trying to replace the <head> of a page with the <head> of another
page.
For example, in http://docs.jquery.com/Main_Page, I call
$("head").load("/About head")
expecting to replace the <head> section of the current page with that
of http://docs.jquery.com/About.
However, the function seems to insert an empty string into my <head>
tag.
Any idea why that might be?
Hannes