[jQuery] Ajax seems to be running fine, but is running the 'error' function. What am I doing wrong?

[Chris - Implied By Design]

I have an Ajax function I'm using to test right now. When the function
is called (upon a click), it runs the function, but displays the
"Error, please try again" message. In Firebug, it looks like the
function is returning the correct msg. I was using 1.0.2 (I think)
where it worked, minus the replaceWith function, and then I upgraded
to 1.1.2 and now it's showing the error message.

Here's the function below, any ideas on what I'm doing wrong?

function testAjax(id,page,sort) {
                        $.ajax({
                                        url: 'ajaxtable/refresh',
                                        type: 'GET',
                                        data: 'id=' + id + '&page=' + page + 
'&sort=' + sort,
                                        error: function(){
                                                        alert('Error, please 
try again');
                                        },
                                        success: function(msg){
                                                
$('div').replaceWith('<div>Test</div>' );
                                                        alert(msg);

                                        }
                        });
                }


Thanks!