[jQuery] Context param in IE and FF not working?

[jQuery] Context param in IE and FF not working?


Hi
I'm trying to get a full html (or xhtml) document with ajax and then
use jQuery Selectors on the received data.
This is the file with the jQuery Code:
http://paste.ubuntuusers.de/391117/
This is the file I'm requesting with ajax:
http://paste.ubuntuusers.de/391118/
In Opera all 3 alerts work perfectly.
In Firefox usually only the last one works:
alert($("div.answer3", data).html()); results in "this is answer 3"
The others just return "null".
Only when I uncomment <?php //header("Content-type: application/xhtml
+xml"); ?>, all 3 are working as in Opera.
In IE no matter which of the headers I use, only the last one works.
It's as if all level up to the one right under <body> are not
accessible, but everything thereunder is:
<html>
<head>not available</head>
<body>
not available
<div id="foo">not available</div>
<div id="bar">
<div id="fuu">
available, and everything contained in here is too
</div>
</div>
</body>
</html>
Any help is much appreciated.
Thanks
David