$(function () {

  // add trigger to the button
  $('input#edit-ignore-node').click(function () {
    // change button label
    $(this).attr('value', 'Other label');

    // get nid value
    nid = $('#id').val();
    // use ajax to run a menu_path callback
    $.get(base_path + 'readpath/ignore/'+nid);

    // it will abort button submit
    return false;
  });
});