var xmlstr = '<Students>' +
  '<Student Name="April" Gender="F" DateOfBirth="1989-01-02" />' +
  '<Student Name="Bob" Gender="M"  DateOfBirth="1990-03-04" />' +
  '<Student Name="Chad" Gender="M"  DateOfBirth="1991-05-06" />' +
  '<Student Name="Dave" Gender="M"  DateOfBirth="1992-07-08">' +
    '<Pet Type="dog" Name="Rover" />' +
  '</Student>' +
  '<Student DateOfBirth="1993-09-10" Gender="F" Name="&#x00C9;mily" />' +
'</Students>';
var xml = XML(xmlstr);
var list = xml.Student.@Name;
var output = '';
for (var i = 0; i < list.length(); i++) {
  if (i > 0) {
    output += ', ';
  }
  output += list[i];
}

alert(output);