[jQuery] Problem with AJAX parsing

[Michael Barcaro]

Hello, I'm stuck with a big problem: when I make an AJAX call I
receive a response object which I parse with jQuery:

$.ajax({
        url: 'myUrl.html',
        complete: function(m){
                                var txt = $(m.responseText);
                                alert($(m.responseText).find('#myDiv').html());
                        }
        });

In Firefox, Safari and latest IEs (7 & 8) I get the correct content.
In IE6 instead I don't get anything and the browser crashes.
Any hint on this? How can I parse my response (is a HTML page)?

Thank you,
Mitch.