function mod_project(base, pid) {

  // Ajax GET request.
  $.ajax({
    type: "GET",
    url: base + pid,
    success: function (data) {
      // Parse back result
      var result = Drupal.parseJson(data);
      $("#project-issue-rid").empty().append(result['rid']);
      $("#project-issue-component").empty().append(result['component']);
    },
    error: function (xmlhttp) {
      alert('An HTTP error '+ xmlhttp.status +' occured.\n'+ url);
    }
  });
}