Trouble parsing XmlDocument returned from asmx from inside ajax query in javascript

So i have a .asmx web method that returns a XMLDocument. This service is called from inside a .aspx with javascript.

The query used is like this ,

$.ajax({
                    type: "POST",
                    url: 'http://ift.tt/1AJ3TOU',
                    contentType: "application/xml; charset=utf-8",
                    dataType: "xml",
                    success: function (msg) {
                        var data = new Array();
                        alert("Success calling web service");
                        xmlFromService = msg;
                        var rows = xmlFromService.getElementsByTagName("row");
                        for (i = 0; i < rows.length; i++) {
                            var cellArray = rows[i].children;

                            data[i] = {
                              // Some assignment operations here  
                            };
                        }

The problem i am facing is that the value of rows is returned as 2 when i know there are thousands of rows in the xml returned from the web service. I am not sure what i am missing.