jQuery .get error response function?

$.get does not give you the opportunity to set an error handler. You will need to use the low-level $.ajax function instead:

$.ajax({
    url: 'http://example.com/page/2/',
    type: 'GET',
    success: function(data){ 
        $(data).find('#reviews .card').appendTo('#reviews');
    },
    error: function(data) {
        alert('woops!'); //or whatever
    }
});

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Edit March ’10

Note that with the new jqXHR object in jQuery 1.5, you can set an error handler after calling $.get:

$.get('http://example.com/page/2/', function(data){ 
    $(data).find('#reviews .card').appendTo('#reviews');
}).fail(function() {
    alert('woops'); // or whatever
});