getJSON problem

getJSON problem

Hi there,

I am new to JQuery and I am trying to implement the getJSON function.

my code for utilizing the getJSON follows:

$(un).blur(function () {
                $.getJSON('Services/UsernameAvailable.aspx?' + escape($(this).val()),
                    function (results) {
                       
                        alert(results);
                       
                    });

                });











where un in a reference to a Textbox.

I can debug and verify that the call to
'Services/UsernameAvailable.aspx?' + escape($(this).val())

occurs and return correct answers.

My problem is that the "success callback function" of the getJSON function is NEVER called.

Any idea of what I am doing wrong ?