app.js

var cleanIt = function() {
  var myIds = ['hplogo', 'my-tiles','most-visited','hplogop', 'dood', 'prm', 'prm-pt','gbq1'];
  for (var i=0; i < myIds.length; i++) {
    try {
      var el = document.getElementById( myIds[i] );
      el.parentElement.removeChild(el);
    } catch(e) {}
  }
}

window.onload = function() {
  cleanIt();
};