Web Audio Evaluation Tool

When you get to these lines, I think the function should return after "createProjectSave('null');", otherwise you will be throwing an exception at the next line "var response = xmlhttp.responseXML.childNodes⁰;" because xmlhttp.responseXML == null

                if (xmlhttp.responseXML == null)
                {
                    createProjectSave('null');
                }
                var response = xmlhttp.responseXML.childNodes[0];